Koskamo

HCRB MCP

Provides deterministic banking, LEI, VAT, SWIFT and compliance checks via MCP with signed XDR-1 receipts. Supports identifier validation, sanctions screening, and FX price oracles through a catalog of public and paid module tools.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

HCRB MCP logo, by Juana LimitedCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by Juana Limited
You need:Discovery and eligible free calls need no manually configured API keypaid calls require an x402-capable client with a caller-approved wallet and spending policy
MCP endpoint (Streamable HTTP)
https://hcrb.in/mcp
Vendor documentation

What its tools do

57 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

57 of 57 have a description · 57 of 57 declare behavior hints · 57 of 57 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Validate IBAN checksums and formats
  • Check LEI registry identifiers
  • Screen addresses against sanctions lists
  • Retrieve FX spot prices

Source and maintenance

Community listingRegistry 1.2.1

Protocol and capabilities

Server
code402 1.3.0
MCP protocol negotiated in check
2025-11-25
Tools
57 advertised
Resources
2 advertised
Resource templates
0 advertised
Prompts
0 advertised
Server-advertised capabilities
{
  "tools": {},
  "prompts": {},
  "resources": {}
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Code402 provides scoped checks through HCRB. 73 tools are currently advertised; the default card lists the 57 core ones (add ?catalog=experimental for the advertised full set, or ?catalog=modules for the seven paid revenue-module tools). Read each tool's input schema and limitations before use. Where a signed XDR-1 receipt is returned, verify the expected signer and request/result binding; an absent receipt is not verified evidence. A valid signature does not independently establish ownership, authorization, settlement or delivery. Discovery and eligible free calls need no manually configured API key. Paid calls require an x402-capable client, a caller-approved wallet and spending policy; MCP support alone does not provide signing or authorize spending. If payment is unsupported or an outcome is uncertain, stop and surface it; never create a fresh payment to resolve ambiguity. We take no custody and settle no commercial payout. First 5 calls/day are free per client on eligible tools; some tools are always paid.

Tools

57 advertised

crypto_ticker — Crypto ticker
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.

crypto_ticker input schema
{
  "type": "object",
  "examples": [
    {
      "symbol": "btc"
    }
  ],
  "required": [
    "symbol"
  ],
  "properties": {
    "symbol": {
      "type": "string",
      "description": "Ticker symbol (btc, eth, sol, …) or a CoinGecko asset id (bitcoin, ethereum, …)."
    }
  }
}
crypto_ticker output schema
{
  "type": "object",
  "required": [
    "valid",
    "symbol"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "cached": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "symbol": {
      "type": "string"
    },
    "currency": {
      "type": "string"
    },
    "price_usd": {
      "type": "number"
    },
    "retryable": {
      "type": "boolean"
    },
    "fetched_at": {
      "type": "string"
    },
    "coingecko_id": {
      "type": "string"
    }
  }
}
crypto_ticker annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Crypto ticker",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
erc20_balance — ERC-20 Token Balance Snapshot
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.

erc20_balance input schema
{
  "type": "object",
  "examples": [
    {
      "address": "0xc59c85e661d34084a7769f955d17fd38254a6235",
      "token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
    }
  ],
  "required": [
    "address",
    "token_address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "description": "Holder EVM address, 0x-prefixed."
    },
    "decimals": {
      "type": "number",
      "description": "Token decimals override (optional)."
    },
    "token_address": {
      "type": "string",
      "description": "ERC-20 token contract address, 0x-prefixed."
    }
  }
}
erc20_balance output schema
{
  "type": "object",
  "required": [
    "valid",
    "address",
    "token_address"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "address": {
      "type": "string"
    },
    "balance": {
      "type": "number"
    },
    "decimals": {
      "type": "number"
    },
    "retryable": {
      "type": "boolean"
    },
    "balance_raw": {
      "type": "string"
    },
    "token_address": {
      "type": "string"
    },
    "decimals_source": {
      "type": "string"
    }
  }
}
erc20_balance annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "ERC-20 Token Balance Snapshot",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
fx_spot_price_oracle — FX spot price oracle
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.

fx_spot_price_oracle input schema
{
  "type": "object",
  "examples": [
    {
      "base": "EUR",
      "quote": "USD"
    }
  ],
  "required": [
    "base",
    "quote"
  ],
  "properties": {
    "base": {
      "type": "string",
      "description": "Base currency symbol (e.g. USDC, EUR, GBP, JPY)."
    },
    "quote": {
      "type": "string",
      "description": "Quote currency symbol (e.g. USD, EUR, JPY)."
    }
  }
}
fx_spot_price_oracle output schema
{
  "type": "object",
  "required": [
    "pair",
    "rate",
    "inverse",
    "timestamp",
    "source"
  ],
  "properties": {
    "pair": {
      "type": "string"
    },
    "rate": {
      "type": "number"
    },
    "source": {
      "type": "string"
    },
    "inverse": {
      "type": "number"
    },
    "timestamp": {
      "type": "number"
    }
  }
}
fx_spot_price_oracle annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "FX spot price oracle",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
block_info — Base Block Header Info
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Base chain (8453) block header data: block number, timestamp, transaction count and base fee for any block. Result carries a signed receipt.

block_info input schema
{
  "type": "object",
  "examples": [
    {
      "block": "latest"
    }
  ],
  "required": [],
  "properties": {
    "block": {
      "type": "string",
      "description": "Block number as hex (0x…) or decimal, or a tag (latest/earliest/pending/finalized/safe); defaults to latest."
    }
  }
}
block_info output schema
{
  "type": "object",
  "required": [
    "valid",
    "block_number"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "block": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "tx_count": {
      "type": "number"
    },
    "retryable": {
      "type": "boolean"
    },
    "timestamp": {
      "type": "number"
    },
    "block_number": {
      "type": "number"
    },
    "base_fee_gwei": {
      "type": "number"
    },
    "timestamp_iso": {
      "type": "string"
    }
  }
}
block_info annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Base Block Header Info",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
tx_activity — Tx Activity & Contract Detection
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.

tx_activity input schema
{
  "type": "object",
  "examples": [
    {
      "address": "0xc59c85e661d34084a7769f955d17fd38254a6235"
    }
  ],
  "required": [
    "address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "description": "EVM address, 0x-prefixed."
    }
  }
}
tx_activity output schema
{
  "type": "object",
  "required": [
    "valid",
    "address",
    "tx_count"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "address": {
      "type": "string"
    },
    "tx_count": {
      "type": "number"
    },
    "is_contract": {
      "type": "boolean"
    },
    "first_funded_heuristic": {
      "type": "boolean"
    }
  }
}
tx_activity annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "Tx Activity & Contract Detection",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
token_contract_risk — Token contract facts (Base)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.

token_contract_risk input schema
{
  "type": "object",
  "examples": [
    {
      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
    }
  ],
  "required": [
    "address"
  ],
  "properties": {
    "chain": {
      "enum": [
        "base"
      ],
      "type": "string",
      "description": "Optional. Only 'base' (Base mainnet) is supported."
    },
    "address": {
      "type": "string",
      "description": "Contract address on Base, 0x + 40 hex."
    }
  }
}
token_contract_risk output schema
{
  "type": "object",
  "required": [
    "valid",
    "address",
    "is_contract",
    "flags",
    "scope"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "block": {
      "type": "object"
    },
    "chain": {
      "type": "string"
    },
    "erc20": {
      "type": "object"
    },
    "flags": {
      "type": "array"
    },
    "owner": {
      "type": "object"
    },
    "proxy": {
      "type": "object"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "address": {
      "type": "string"
    },
    "opcodes": {
      "type": "object"
    },
    "retryable": {
      "type": "boolean"
    },
    "flag_counts": {
      "type": "object"
    },
    "is_contract": {
      "type": "boolean"
    },
    "privileged_selectors": {
      "type": "array"
    }
  }
}
token_contract_risk annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "Token contract facts (Base)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
clean_markdown_scraper — Clean markdown scraper
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt.

clean_markdown_scraper input schema
{
  "type": "object",
  "examples": [
    {
      "url": "https://example.com/"
    }
  ],
  "required": [],
  "properties": {
    "url": {
      "type": "string",
      "description": "Public http(s) page to fetch (ports 80/443 only). Provide exactly one of url or html."
    },
    "html": {
      "type": "string",
      "description": "Raw HTML string to convert instead of fetching a URL (max 1 MiB). Provide exactly one of url or html."
    }
  }
}
clean_markdown_scraper output schema
{
  "type": "object",
  "required": [
    "markdown",
    "wordCount"
  ],
  "properties": {
    "code": {
      "type": "string"
    },
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "source": {
      "type": "object"
    },
    "headings": {
      "type": "array"
    },
    "markdown": {
      "type": "string"
    },
    "retryable": {
      "type": "boolean"
    },
    "wordCount": {
      "type": "number"
    },
    "fetched_on": {
      "type": "string"
    }
  }
}
clean_markdown_scraper annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "15000",
    "price_ceiling": "75000"
  },
  "title": "Clean markdown scraper",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
context_distill — Context distill
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Deterministic text digest: word count, top-5 most frequent meaningful words (stop words excluded), first sentence, and a keccak-256 content hash. Pure function — no external calls, no ML.

context_distill input schema
{
  "type": "object",
  "examples": [
    {
      "text": "The landlord demanded the deposit before the viewing. The deposit was paid before any viewing of the property."
    }
  ],
  "required": [
    "text"
  ],
  "properties": {
    "text": {
      "type": "string",
      "description": "Arbitrary text to distill (any length; hashing is over the exact input)."
    }
  }
}
context_distill output schema
{
  "type": "object",
  "required": [
    "valid",
    "word_count"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "top_words": {
      "type": "array"
    },
    "word_count": {
      "type": "number"
    },
    "content_hash": {
      "type": "string"
    },
    "first_sentence": {
      "type": "string"
    },
    "meaningful_word_count": {
      "type": "number"
    }
  }
}
context_distill annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Context distill",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
instant_json_schema_verifier — Instant JSON schema verifier
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.

instant_json_schema_verifier input schema
{
  "type": "object",
  "examples": [
    {
      "data": {
        "name": "Apex Agent",
        "version": 2
      },
      "schema": {
        "required": [
          "name",
          "version"
        ],
        "properties": {
          "name": {
            "type": "string"
          },
          "version": {
            "type": "number"
          }
        }
      }
    }
  ],
  "required": [
    "data",
    "schema"
  ],
  "properties": {
    "data": {
      "type": "object",
      "description": "The JSON data object to validate against the schema."
    },
    "schema": {
      "type": "object",
      "description": "The JSON schema object with expected properties and types."
    }
  }
}
instant_json_schema_verifier output schema
{
  "type": "object",
  "required": [
    "valid",
    "errors",
    "execution_ms"
  ],
  "properties": {
    "valid": {
      "type": "boolean"
    },
    "errors": {
      "type": "array"
    },
    "execution_ms": {
      "type": "number"
    }
  }
}
instant_json_schema_verifier annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Instant JSON schema verifier",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
balance_check — Base Account Balance Snapshot
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt.

balance_check input schema
{
  "type": "object",
  "examples": [
    {
      "address": "0xc59c85e661d34084a7769f955d17fd38254a6235"
    }
  ],
  "required": [
    "address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "description": "EVM address, 0x-prefixed."
    },
    "token_address": {
      "type": "string",
      "description": "ERC-20 token contract address (optional; defaults to USDC on Base)."
    }
  }
}
balance_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "address"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "token": {
      "type": "object"
    },
    "valid": {
      "type": "boolean"
    },
    "native": {
      "type": "object"
    },
    "reason": {
      "type": "string"
    },
    "address": {
      "type": "string"
    },
    "retryable": {
      "type": "boolean"
    }
  }
}
balance_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "Base Account Balance Snapshot",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
calculate_fx_savings — Calculate cross-border FX savings
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Arithmetic comparison of a USDC settlement against comparator percentages YOU supply (bank_fee_pct, custodial_fee_pct) across 14 global fiat currencies. The comparators are assumptions, not measurements of any bank or provider; no protocol fee is deducted on this rail.

calculate_fx_savings input schema
{
  "type": "object",
  "examples": [
    {
      "currency": "BRL",
      "amount_usdc": 50000
    }
  ],
  "properties": {
    "amount": {
      "type": "number",
      "description": "Gross invoice settlement volume in USD/USDC (alias)."
    },
    "currency": {
      "type": "string",
      "description": "Target currency for local comparison (e.g. EUR, GBP, BRL, INR, ARS, PHP, NGN, SGD)."
    },
    "amount_usd": {
      "type": "number",
      "description": "Gross invoice settlement volume in USD/USDC (alias)."
    },
    "amount_usdc": {
      "type": "number",
      "description": "Gross invoice settlement volume in USD/USDC."
    }
  }
}
calculate_fx_savings output schema
{
  "type": "object",
  "required": [
    "amount_usdc",
    "retained_savings_usd",
    "pct_retained"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "currency": {
      "type": "string"
    },
    "amount_usdc": {
      "type": "number"
    },
    "deel_fee_usd": {
      "type": "number"
    },
    "pct_retained": {
      "type": "number"
    },
    "local_currency": {
      "type": "object"
    },
    "legacy_swift_fee_usd": {
      "type": "number"
    },
    "retained_savings_usd": {
      "type": "number"
    },
    "code402_protocol_fee_usd": {
      "type": "number"
    }
  }
}
calculate_fx_savings annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Calculate cross-border FX savings",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
iban_check — IBAN Structure and Checksum Check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.

iban_check input schema
{
  "type": "object",
  "examples": [
    {
      "iban": "CH93 0076 2011 6238 5295 7"
    }
  ],
  "required": [
    "iban"
  ],
  "properties": {
    "iban": {
      "type": "string",
      "description": "IBAN to validate; spaces allowed."
    }
  }
}
iban_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
iban_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "IBAN Structure and Checksum Check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
lei_check — LEI Structure and Checksum Check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.

lei_check input schema
{
  "type": "object",
  "examples": [
    {
      "lei": "529900T8BM49AURSDO55"
    }
  ],
  "required": [
    "lei"
  ],
  "properties": {
    "lei": {
      "type": "string",
      "description": "20-character Legal Entity Identifier."
    }
  }
}
lei_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
lei_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "LEI Structure and Checksum Check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
vat_mod97_check — Belgian VAT MOD-97 Check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.

vat_mod97_check input schema
{
  "type": "object",
  "examples": [
    {
      "vat_number": "BE0417497106"
    }
  ],
  "required": [
    "vat_number"
  ],
  "properties": {
    "vat_number": {
      "type": "string",
      "description": "Belgian VAT id in the supported BE mod-97 format (BE prefix optional); not a VIES lookup."
    }
  }
}
vat_mod97_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
vat_mod97_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "Belgian VAT MOD-97 Check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
swift_bic_check — SWIFT/BIC Structure Check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.

swift_bic_check input schema
{
  "type": "object",
  "examples": [
    {
      "bic": "DEUTDEFF500"
    }
  ],
  "required": [
    "bic"
  ],
  "properties": {
    "bic": {
      "type": "string",
      "description": "SWIFT/BIC code, 8 or 11 characters; spaces/dashes allowed."
    }
  }
}
swift_bic_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
swift_bic_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "SWIFT/BIC Structure Check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
batch_validate — Batch Identifier Checks (up to 50 items)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate up to 50 tax, bank and legal-entity identifiers (IBAN, LEI, VAT, SWIFT/BIC, ABA routing, EIN, IFSC, ABN, GSTIN, ISIN, SEDOL, EAN-13, ISBN, E.164 or Luhn checks) in one batch request. Each result states its scope. Compare the current batch quote with individual quotes; savings depend on batch size.

batch_validate input schema
{
  "type": "object",
  "examples": [
    {
      "items": [
        {
          "tool": "iban-check",
          "value": "GB82 WEST 1234 5698 7654 32"
        },
        {
          "tool": "lei-check",
          "value": "529900T8BM49AURSDO55"
        },
        {
          "tool": "vat-mod97-check",
          "value": "BE0417497106"
        }
      ]
    }
  ],
  "required": [
    "items"
  ],
  "properties": {
    "items": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "tool",
          "value"
        ],
        "properties": {
          "tool": {
            "enum": [
              "iban-check",
              "lei-check",
              "vat-mod97-check",
              "company-number-format",
              "swift-bic-check",
              "aba-routing-check",
              "ein-format-check",
              "ifsc-check",
              "abn-check",
              "luhn-check",
              "isbn-check",
              "e164-check",
              "sedol-check",
              "isin-check",
              "ean13-check",
              "gstin-check",
              "context-distill"
            ],
            "type": "string",
            "description": "which validator to run"
          },
          "value": {
            "type": "string",
            "description": "the identifier (or text, for context-distill) to check"
          }
        }
      },
      "maxItems": 50,
      "minItems": 1,
      "description": "List of {tool, value} checks (max 50)."
    }
  }
}
batch_validate output schema
{
  "type": "object",
  "required": [
    "count",
    "results"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "count": {
      "type": "number"
    },
    "scope": {
      "type": "string"
    },
    "results": {
      "type": "array"
    },
    "valid_count": {
      "type": "number"
    },
    "invalid_count": {
      "type": "number"
    }
  }
}
batch_validate annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "50000",
    "price_ceiling": "250000"
  },
  "title": "Batch Identifier Checks (up to 50 items)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
vendor_onboarding_pack — Vendor Identifier Check Pack
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.

vendor_onboarding_pack input schema
{
  "type": "object",
  "examples": [
    {
      "lei": "529900T8BM49AURSDO55",
      "iban": "GB82 WEST 1234 5698 7654 32",
      "vat_number": "BE0417497106",
      "company_number": "12345678"
    }
  ],
  "required": [],
  "properties": {
    "lei": {
      "type": "string",
      "description": "Vendor LEI (optional)."
    },
    "iban": {
      "type": "string",
      "description": "Vendor IBAN (optional)."
    },
    "vat_number": {
      "type": "string",
      "description": "Vendor VAT number, BE mod-97 (optional)."
    },
    "company_number": {
      "type": "string",
      "description": "Vendor UK company number (optional)."
    }
  }
}
vendor_onboarding_pack output schema
{
  "type": "object",
  "required": [
    "checked_count",
    "all_valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "results": {
      "type": "array"
    },
    "verdict": {
      "type": "string"
    },
    "all_valid": {
      "type": "boolean"
    },
    "checked_count": {
      "type": "number"
    }
  }
}
vendor_onboarding_pack annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "Vendor Identifier Check Pack",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
india_supplier_check — India Supplier Verification Pack
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

One call, one receipt: GSTIN + PAN + UPI VPA + IFSC for an Indian counterparty. Four deterministic structural checks, each stating its own scope. Built for cross-border procurement where the buyer is an agent that cannot open an INR account.

india_supplier_check input schema
{
  "type": "object",
  "examples": [
    {
      "pan": "AAACP1234M",
      "vpa": "merchant@okhdfcbank",
      "ifsc": "HDFC0001234",
      "gstin": "27AAPFU0939F1ZV"
    }
  ],
  "required": [],
  "properties": {
    "pan": {
      "type": "string",
      "description": "PAN (10 chars, optional)"
    },
    "vpa": {
      "type": "string",
      "description": "UPI VPA handle (optional)"
    },
    "ifsc": {
      "type": "string",
      "description": "IFSC bank code (optional)"
    },
    "gstin": {
      "type": "string",
      "description": "GSTIN (15 chars, optional)"
    }
  }
}
india_supplier_check output schema
{
  "type": "object",
  "required": [
    "checked_count",
    "all_valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "results": {
      "type": "array"
    },
    "verdict": {
      "type": "string"
    },
    "corridor": {
      "type": "string"
    },
    "all_valid": {
      "type": "boolean"
    },
    "next_steps": {
      "type": "string"
    },
    "checked_count": {
      "type": "number"
    }
  }
}
india_supplier_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "India Supplier Verification Pack",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
pre_disbursement_guard — Counterparty Risk Indicators
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Check supplier tax and bank identifiers (IBAN, LEI, EU VAT, UK company number), domain-age evidence and country mismatch signals before vendor payment. Requires a preceding receipt hash. An advisory result is not verified identity, fraud clearance or authorization to release funds.

pre_disbursement_guard input schema
{
  "type": "object",
  "examples": [
    {
      "vendor_domain": "billing@acme-consulting.co.uk",
      "company_number": "01234567",
      "recipient_iban": "GB82WEST12345698765432",
      "declared_country": "GB",
      "prev_receipt_hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "invoice_amount_usd": 4500
    }
  ],
  "required": [],
  "properties": {
    "lei": {
      "type": "string",
      "description": "ISO 17442 Legal Entity Identifier (optional)."
    },
    "vat_number": {
      "type": "string",
      "description": "EU VAT number (optional)."
    },
    "vendor_domain": {
      "type": "string",
      "description": "Vendor website domain or invoicing email address (optional)."
    },
    "company_number": {
      "type": "string",
      "description": "Official corporate registration number, e.g. UK Companies House 8 digits/chars (optional)."
    },
    "recipient_iban": {
      "type": "string",
      "description": "Recipient bank IBAN (optional)."
    },
    "declared_country": {
      "type": "string",
      "description": "2-letter ISO country code where vendor claims to be registered (optional, e.g. 'GB', 'US', 'DE')."
    },
    "physical_address": {
      "type": "string",
      "description": "Vendor physical office address (optional)."
    },
    "prev_receipt_hash": {
      "type": "string",
      "description": "Preceding verification receipt hash (may also be passed via X-PREV-RECEIPT-HASH header)."
    },
    "invoice_amount_usd": {
      "type": "number",
      "description": "Disbursement transaction amount in USD (optional)."
    }
  }
}
pre_disbursement_guard output schema
{
  "type": "object",
  "required": [
    "clear_to_disburse",
    "risk_level",
    "risk_score",
    "decision"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "checks": {
      "type": "object"
    },
    "summary": {
      "type": "string"
    },
    "decision": {
      "type": "string"
    },
    "risk_level": {
      "type": "string"
    },
    "risk_score": {
      "type": "number"
    },
    "flags_triggered": {
      "type": "array"
    },
    "recommendations": {
      "type": "array"
    },
    "clear_to_disburse": {
      "type": "boolean"
    },
    "inspected_counterparty": {
      "type": "object"
    }
  }
}
pre_disbursement_guard annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "Counterparty Risk Indicators",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
gstin_check — GSTIN check (India)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.

gstin_check input schema
{
  "type": "object",
  "examples": [
    {
      "gstin": "27AAPFU0939F1ZV"
    }
  ],
  "required": [
    "gstin"
  ],
  "properties": {
    "gstin": {
      "type": "string",
      "description": "15-character Indian Goods and Services Tax Identification Number."
    }
  }
}
gstin_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
gstin_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "GSTIN check (India)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
ifsc_check — IFSC Format Check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.

ifsc_check input schema
{
  "type": "object",
  "examples": [
    {
      "ifsc": "HDFC0000123"
    }
  ],
  "required": [
    "ifsc"
  ],
  "properties": {
    "ifsc": {
      "type": "string",
      "description": "11-character Indian Financial System Code."
    }
  }
}
ifsc_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
ifsc_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "IFSC Format Check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
sanctions_address_screen — Address Snapshot & Operator Policy Comparison
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Screen an EVM wallet address or ISO country code by exact comparison against the identified sanctions address snapshot and existing operator block policy. Current legal status is unknown; is_sanctioned is null. valid=false preserves a local block; valid=null never authorizes a transaction. Names are not screened. Missing, stale or incomplete evidence is explicit; no UN/EU coverage or sanctions clearance is provided.

sanctions_address_screen input schema
{
  "type": "object",
  "examples": [
    {
      "subject": "0x7f367cc41522ce07553e823bf3be79a889debe1b"
    }
  ],
  "required": [
    "subject"
  ],
  "properties": {
    "subject": {
      "type": "string",
      "description": "EVM address (0x...) or ISO 3166-1 country code / jurisdiction name"
    }
  }
}
sanctions_address_screen output schema
{
  "type": "object",
  "required": [
    "tool",
    "valid",
    "is_sanctioned",
    "blocklist_match",
    "current_legal_status",
    "screening_status"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": [
        "boolean",
        "null"
      ]
    },
    "reason": {
      "type": "string"
    },
    "subject": {
      "type": "string"
    },
    "match_type": {
      "type": "string"
    },
    "is_sanctioned": {
      "type": "null"
    },
    "blocklist_match": {
      "type": [
        "boolean",
        "null"
      ]
    },
    "snapshot_sha256": {
      "type": "string"
    },
    "snapshot_status": {
      "type": "string"
    },
    "sanction_program": {
      "type": [
        "string",
        "null"
      ]
    },
    "screening_status": {
      "type": "string"
    },
    "current_legal_status": {
      "type": "string"
    }
  }
}
sanctions_address_screen annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "15000",
    "price_ceiling": "75000"
  },
  "title": "Address Snapshot & Operator Policy Comparison",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
company_number_format — UK Company Number Format Check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Check supported UK company-number syntax. No Companies House lookup, entity-existence check or active-registration verification.

company_number_format input schema
{
  "type": "object",
  "examples": [
    {
      "company_number": "12345678"
    }
  ],
  "required": [
    "company_number"
  ],
  "properties": {
    "company_number": {
      "type": "string",
      "description": "8 digits, or 2 letters + 6 digits."
    }
  }
}
company_number_format output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
company_number_format annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "UK Company Number Format Check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
aba_routing_check — ABA Routing Number Check (US Fedwire/ACH)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate a US ABA routing number by its (3,7,1)-weight mod-10 Fedwire/ACH checksum. Catches mistyped or invalid routing numbers before payment; does NOT prevent transfer reversals or establish the recipient. Returns signed XDR-1 receipt.

aba_routing_check input schema
{
  "type": "object",
  "examples": [
    {
      "aba_routing": "021000021"
    }
  ],
  "properties": {
    "routing": {
      "type": "string",
      "description": "9-digit US bank routing number (alias)."
    },
    "aba_routing": {
      "type": "string",
      "description": "9-digit US bank routing number."
    }
  }
}
aba_routing_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
aba_routing_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "ABA Routing Number Check (US Fedwire/ACH)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
ein_format_check — EIN Format Check (US)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate US Employer Identification Number FORMAT (NN-NNNNNNN). Use during US business counterparty KYB verification. Returns signed XDR-1 receipt.

ein_format_check input schema
{
  "type": "object",
  "examples": [
    {
      "ein": "12-3456789"
    }
  ],
  "required": [
    "ein"
  ],
  "properties": {
    "ein": {
      "type": "string",
      "description": "US EIN, 9 digits; dashes/spaces allowed."
    }
  }
}
ein_format_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
ein_format_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "EIN Format Check (US)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
abn_check — ABN Check (Australia)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate an Australian Business Number by its mod-89 checksum (11 digits). Required before invoice payment to Australian contractors. Returns signed XDR-1 receipt.

abn_check input schema
{
  "type": "object",
  "examples": [
    {
      "abn": "51 824 753 556"
    }
  ],
  "required": [
    "abn"
  ],
  "properties": {
    "abn": {
      "type": "string",
      "description": "11-digit Australian Business Number; spaces allowed."
    }
  }
}
abn_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
abn_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "ABN Check (Australia)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
e164_check — E.164 International Phone Check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate a phone number's E.164 structure (+CC, 8-15 digits, no leading zero) before dispatching SMS alerts or OTPs. Returns signed XDR-1 receipt.

e164_check input schema
{
  "type": "object",
  "examples": [
    {
      "phone": "+14155552671"
    }
  ],
  "required": [
    "phone"
  ],
  "properties": {
    "phone": {
      "type": "string",
      "description": "International phone number, e.g. +14155552671."
    }
  }
}
e164_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
e164_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "E.164 International Phone Check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
sedol_check — SEDOL Check (UK/Ireland Securities)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate a UK/Ireland security identifier by its (1,3,1,7,3,9)-weight mod-10 checksum. Returns signed XDR-1 receipt.

sedol_check input schema
{
  "type": "object",
  "examples": [
    {
      "sedol": "B0YBKJ7"
    }
  ],
  "required": [
    "sedol"
  ],
  "properties": {
    "sedol": {
      "type": "string",
      "description": "7-character SEDOL code."
    }
  }
}
sedol_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
sedol_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "SEDOL Check (UK/Ireland Securities)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
isin_check — ISIN check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=10…Z=35 converted string.

isin_check input schema
{
  "type": "object",
  "examples": [
    {
      "isin": "US0378331005"
    }
  ],
  "required": [
    "isin"
  ],
  "properties": {
    "isin": {
      "type": "string",
      "description": "12-character ISIN: 2-letter country code + 9 alphanumerics + check digit; spaces allowed."
    }
  }
}
isin_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
isin_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "ISIN check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
ean13_check — EAN-13 check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate an EAN-13 barcode by its mod-10 checksum (odd positions x1, even positions x3).

ean13_check input schema
{
  "type": "object",
  "examples": [
    {
      "code": "5901234123457"
    }
  ],
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "description": "13-digit EAN-13 barcode; spaces/dashes allowed."
    }
  }
}
ean13_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
ean13_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "EAN-13 check",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
cnpj_check — Brazil CNPJ Check (Cadastro Nacional da Pessoa Jurídica)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate Brazilian corporate tax ID (CNPJ) with official dual mod-11 check digits. Required for Brazilian B2B payments, PIX verification, and vendor due diligence. Returns signed XDR-1 receipt.

cnpj_check input schema
{
  "type": "object",
  "examples": [
    {
      "cnpj": "00.000.000/0001-91"
    }
  ],
  "required": [
    "cnpj"
  ],
  "properties": {
    "cnpj": {
      "type": "string",
      "description": "14-digit Brazilian CNPJ; punctuation allowed (e.g. 00.000.000/0001-91)."
    }
  }
}
cnpj_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
cnpj_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Brazil CNPJ Check (Cadastro Nacional da Pessoa Jurídica)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
uscc_check — China USCC Check (Unified Social Credit Code / 统一社会信用代码)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate 18-character Chinese business registration and tax code using GB 32100-2015 ISO 7064 Mod-31-3 checksum. Required for B2B supply chain trade with Chinese manufacturers. Returns signed XDR-1 receipt.

uscc_check input schema
{
  "type": "object",
  "examples": [
    {
      "uscc": "91330100799655058B"
    }
  ],
  "required": [
    "uscc"
  ],
  "properties": {
    "uscc": {
      "type": "string",
      "description": "18-character Chinese Unified Social Credit Code (e.g. 91330100799655058B)."
    }
  }
}
uscc_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
uscc_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "China USCC Check (Unified Social Credit Code / 统一社会信用代码)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
japan_corp_check — Japan Corporate Number Check (法人番号 - Houjin Bangou)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate 13-digit Japanese Corporate Number assigned by the National Tax Agency using Mod-9 check digit algorithm. Required for Japanese B2B SaaS and enterprise billing. Returns signed XDR-1 receipt.

japan_corp_check input schema
{
  "type": "object",
  "examples": [
    {
      "number": "1180301018771"
    }
  ],
  "required": [
    "number"
  ],
  "properties": {
    "number": {
      "type": "string",
      "description": "13-digit Japanese Corporate Number (e.g. 1180301018771)."
    }
  }
}
japan_corp_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
japan_corp_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Japan Corporate Number Check (法人番号 - Houjin Bangou)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
kra_pin_check — Kenya KRA PIN Check (Kenya Revenue Authority)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate Kenyan Revenue Authority Tax PIN structure (A/P followed by 9 digits and checksum character). Required for M-Pesa B2B disbursement and Kenyan remote agency invoicing. Returns signed XDR-1 receipt.

kra_pin_check input schema
{
  "type": "object",
  "examples": [
    {
      "pin": "P051112223Z"
    }
  ],
  "required": [
    "pin"
  ],
  "properties": {
    "pin": {
      "type": "string",
      "description": "11-character KRA PIN (e.g. P051112223Z)."
    }
  }
}
kra_pin_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
kra_pin_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Kenya KRA PIN Check (Kenya Revenue Authority)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
rfc_check — Mexico RFC Check (Registro Federal de Contribuyentes)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate Mexican SAT RFC corporate (12-char) or individual (13-char) tax code and homoclave. Required for Mexican contractor invoicing and SPEI cross-border settlements. Returns signed XDR-1 receipt.

rfc_check input schema
{
  "type": "object",
  "examples": [
    {
      "rfc": "BBA830831LJ2"
    }
  ],
  "required": [
    "rfc"
  ],
  "properties": {
    "rfc": {
      "type": "string",
      "description": "12 or 13 character Mexican RFC (e.g. BBA830831LJ2)."
    }
  }
}
rfc_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
rfc_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Mexico RFC Check (Registro Federal de Contribuyentes)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
iso4217_currency_check — ISO 4217 Currency Standard Check & Settlement Mapping
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Validate 3-letter alpha or 3-digit numeric currency codes against ISO 4217 standard. Returns minor unit decimals, symbol, official name, countries, and onchain Base L2 settlement token mapping (USDC/EURC).

iso4217_currency_check input schema
{
  "type": "object",
  "examples": [
    {
      "currency": "EUR"
    }
  ],
  "required": [
    "currency"
  ],
  "properties": {
    "currency": {
      "type": "string",
      "description": "3-letter ISO 4217 code (e.g. USD, EUR, JPY, CNY, BRL, KES, MXN) or 3-digit numeric code (e.g. 840, 978, 392)."
    }
  }
}
iso4217_currency_check output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
iso4217_currency_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "ISO 4217 Currency Standard Check & Settlement Mapping",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
upi_vpa_check — India UPI Virtual Payment Address (VPA) Validator
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Deterministic structural validation of an Indian UPI Virtual Payment Address (VPA / handle): local-part syntax, handle against a LOCAL list of accredited PSP handles (okhdfcbank, okaxis, paytm, ybl and others), and length rules. It is NOT a live registry lookup: no request leaves this worker, and an unlisted handle is reported as unrecognised rather than nonexistent. This does not establish that the VPA is registered, reachable or owned by anyone.

upi_vpa_check input schema
{
  "type": "object",
  "examples": [
    {
      "vpa": "merchant@okhdfcbank"
    }
  ],
  "required": [
    "vpa"
  ],
  "properties": {
    "vpa": {
      "type": "string",
      "description": "UPI Virtual Payment Address (e.g. 'merchant@okhdfcbank', '9876543210@paytm')"
    }
  }
}
upi_vpa_check output schema
{
  "type": "object",
  "required": [
    "tool",
    "valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "handle": {
      "type": "string"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "username": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    },
    "accredited_psp": {
      "type": "boolean"
    }
  }
}
upi_vpa_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "India UPI Virtual Payment Address (VPA) Validator",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
pan_format_check — India Permanent Account Number (PAN) Format Validator
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Deterministic validation of Indian Permanent Account Number (PAN) issued by CBDT / Income Tax Department with 4th-character entity type classification (Individual, Company, Firm, Trust, HUF).

pan_format_check input schema
{
  "type": "object",
  "examples": [
    {
      "pan": "AAACP1234M"
    }
  ],
  "required": [
    "pan"
  ],
  "properties": {
    "pan": {
      "type": "string",
      "description": "10-character PAN string (e.g. 'AAACP1234M')"
    }
  }
}
pan_format_check output schema
{
  "type": "object",
  "required": [
    "tool",
    "valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    },
    "entity_code": {
      "type": "string"
    },
    "entity_type": {
      "type": "string"
    }
  }
}
pan_format_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "5000",
    "price_ceiling": "25000"
  },
  "title": "India Permanent Account Number (PAN) Format Validator",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
uae_trn_check — UAE Tax Registration Number (TRN) Format Validator
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Deterministic validation of UAE 15-digit Tax Registration Number (TRN) issued by the Federal Tax Authority (FTA) for VAT purposes.

uae_trn_check input schema
{
  "type": "object",
  "examples": [
    {
      "trn": "100123456700003"
    }
  ],
  "required": [
    "trn"
  ],
  "properties": {
    "trn": {
      "type": "string",
      "description": "15-digit UAE TRN string (starts with 100)"
    }
  }
}
uae_trn_check output schema
{
  "type": "object",
  "required": [
    "tool",
    "valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "trn_type": {
      "type": "string"
    },
    "authority": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
uae_trn_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "UAE Tax Registration Number (TRN) Format Validator",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
china_supplier_check — China Supplier Verification Pack
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

One call, one receipt: USCC + settlement IBAN + SWIFT/BIC for a Chinese counterparty. Deterministic structure and checksum validation with explicit scope per identifier.

china_supplier_check input schema
{
  "type": "object",
  "examples": [
    {
      "iban": "GB82WEST12345698765432",
      "uscc": "91350100M000100Y43",
      "swift": "DEUTDEFF"
    }
  ],
  "required": [],
  "properties": {
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    },
    "uscc": {
      "type": "string",
      "description": "Unified Social Credit Code (optional)"
    },
    "swift": {
      "type": "string",
      "description": "SWIFT/BIC (optional)"
    }
  }
}
china_supplier_check output schema
{
  "type": "object",
  "required": [
    "checked_count",
    "all_valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "results": {
      "type": "array"
    },
    "verdict": {
      "type": "string"
    },
    "corridor": {
      "type": "string"
    },
    "all_valid": {
      "type": "boolean"
    },
    "next_steps": {
      "type": "string"
    },
    "checked_count": {
      "type": "number"
    }
  }
}
china_supplier_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "China Supplier Verification Pack",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
japan_supplier_check — Japan Supplier Verification Pack
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

One call, one receipt: 13-digit Corporate Number + settlement IBAN for a Japanese counterparty. Deterministic check digits, explicit scope.

japan_supplier_check input schema
{
  "type": "object",
  "examples": [
    {
      "iban": "GB82WEST12345698765432",
      "corporate_number": "7000012050002"
    }
  ],
  "required": [],
  "properties": {
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    },
    "corporate_number": {
      "type": "string",
      "description": "13-digit Corporate Number (optional)"
    }
  }
}
japan_supplier_check output schema
{
  "type": "object",
  "required": [
    "checked_count",
    "all_valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "results": {
      "type": "array"
    },
    "verdict": {
      "type": "string"
    },
    "corridor": {
      "type": "string"
    },
    "all_valid": {
      "type": "boolean"
    },
    "next_steps": {
      "type": "string"
    },
    "checked_count": {
      "type": "number"
    }
  }
}
japan_supplier_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "Japan Supplier Verification Pack",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
latam_supplier_check — LatAm Supplier Verification Pack
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

One call, one receipt: Brazilian CNPJ + Mexican RFC + settlement IBAN. Deterministic checks for the two largest LatAm corridors in one paid call.

latam_supplier_check input schema
{
  "type": "object",
  "examples": [
    {
      "rfc": "GODE561231GR8",
      "cnpj": "04.252.011/0001-10",
      "iban": "GB82WEST12345698765432"
    }
  ],
  "required": [],
  "properties": {
    "rfc": {
      "type": "string",
      "description": "Mexican RFC (optional)"
    },
    "cnpj": {
      "type": "string",
      "description": "Brazilian CNPJ (optional)"
    },
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    }
  }
}
latam_supplier_check output schema
{
  "type": "object",
  "required": [
    "checked_count",
    "all_valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "results": {
      "type": "array"
    },
    "verdict": {
      "type": "string"
    },
    "corridor": {
      "type": "string"
    },
    "all_valid": {
      "type": "boolean"
    },
    "next_steps": {
      "type": "string"
    },
    "checked_count": {
      "type": "number"
    }
  }
}
latam_supplier_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "LatAm Supplier Verification Pack",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
gulf_supplier_check — Gulf Supplier Verification Pack
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

One call, one receipt: UAE TRN + settlement IBAN + SWIFT/BIC. Deterministic structure validation for Gulf trade corridors, scope stated per identifier.

gulf_supplier_check input schema
{
  "type": "object",
  "examples": [
    {
      "trn": "100123456700003",
      "iban": "AE070331234567890123456",
      "swift": "EBILAEAD"
    }
  ],
  "required": [],
  "properties": {
    "trn": {
      "type": "string",
      "description": "UAE TRN (15 digits, optional)"
    },
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    },
    "swift": {
      "type": "string",
      "description": "SWIFT/BIC (optional)"
    }
  }
}
gulf_supplier_check output schema
{
  "type": "object",
  "required": [
    "checked_count",
    "all_valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "results": {
      "type": "array"
    },
    "verdict": {
      "type": "string"
    },
    "corridor": {
      "type": "string"
    },
    "all_valid": {
      "type": "boolean"
    },
    "next_steps": {
      "type": "string"
    },
    "checked_count": {
      "type": "number"
    }
  }
}
gulf_supplier_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "Gulf Supplier Verification Pack",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
africa_supplier_check — Africa Supplier Verification Pack
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

One call, one receipt: Kenya KRA PIN + settlement IBAN + SWIFT/BIC. Deterministic structural checks for East African trade corridors.

africa_supplier_check input schema
{
  "type": "object",
  "examples": [
    {
      "iban": "GB82WEST12345698765432",
      "swift": "BARCKENX",
      "kra_pin": "P051234567X"
    }
  ],
  "required": [],
  "properties": {
    "iban": {
      "type": "string",
      "description": "Settlement IBAN (optional)"
    },
    "swift": {
      "type": "string",
      "description": "SWIFT/BIC (optional)"
    },
    "kra_pin": {
      "type": "string",
      "description": "KRA PIN (optional)"
    }
  }
}
africa_supplier_check output schema
{
  "type": "object",
  "required": [
    "checked_count",
    "all_valid"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "results": {
      "type": "array"
    },
    "verdict": {
      "type": "string"
    },
    "corridor": {
      "type": "string"
    },
    "all_valid": {
      "type": "boolean"
    },
    "next_steps": {
      "type": "string"
    },
    "checked_count": {
      "type": "number"
    }
  }
}
africa_supplier_check annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "Africa Supplier Verification Pack",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
rent_deposit_guard — Rental Deposit Risk Indicators
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Check deposit IBAN checksum and supplied country/viewing indicators. Rule-based risk signals only; no ownership verification, escrow protection or guarantee against theft.

rent_deposit_guard input schema
{
  "type": "object",
  "examples": [
    {
      "deposit_iban": "GB82WEST12345698765432",
      "property_country": "DE",
      "deposit_before_viewing": true
    }
  ],
  "required": [
    "deposit_iban"
  ],
  "properties": {
    "deposit_iban": {
      "type": "string",
      "description": "IBAN the deposit would be paid to."
    },
    "property_country": {
      "type": "string",
      "description": "ISO 3166-1 alpha-2 country of the property, e.g. DE."
    },
    "deposit_before_viewing": {
      "type": "boolean",
      "description": "True if a deposit is demanded before any viewing."
    }
  }
}
rent_deposit_guard output schema
{
  "type": "object",
  "required": [
    "risk_score",
    "band"
  ],
  "properties": {
    "band": {
      "enum": [
        "low",
        "elevated",
        "high"
      ],
      "type": "string"
    },
    "tool": {
      "type": "string"
    },
    "flags": {
      "type": "array"
    },
    "scope": {
      "type": "string"
    },
    "risk_score": {
      "type": "number"
    },
    "flags_fired": {
      "type": "array"
    },
    "recommendation": {
      "type": "string"
    }
  }
}
rent_deposit_guard annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "Rental Deposit Risk Indicators",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
rental_listing_risk — Rental Listing Risk & Fraud Engine
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Explainable tenancy fraud risk score evaluated across irreversible payment demands, off-platform pressure, stolen photos, and advance wire signals. Deterministic rule engine.

rental_listing_risk input schema
{
  "type": "object",
  "examples": [
    {
      "no_in_person_viewing": true,
      "payment_irreversible": true,
      "price_below_market_pct": 45
    }
  ],
  "required": [],
  "properties": {
    "urgency_pressure": {
      "type": "boolean",
      "description": "Pressure to secure today."
    },
    "no_in_person_viewing": {
      "type": "boolean",
      "description": "No viewing before payment."
    },
    "payment_irreversible": {
      "type": "boolean",
      "description": "Paid via crypto/gift-card/wire-only."
    },
    "price_below_market_pct": {
      "type": "number",
      "description": "How far below local market the rent is asked, in percent."
    },
    "photos_reverse_image_hit": {
      "type": "boolean",
      "description": "Listing photos found elsewhere (stolen)."
    },
    "contact_moves_offplatform": {
      "type": "boolean",
      "description": "Pushed off the listing platform."
    },
    "landlord_abroad_cannot_meet": {
      "type": "boolean",
      "description": "Landlord 'abroad', can't meet in person."
    },
    "identity_docs_requested_upfront": {
      "type": "boolean",
      "description": "Full ID/bank docs demanded upfront."
    }
  }
}
rental_listing_risk output schema
{
  "type": "object",
  "required": [
    "risk_score",
    "band"
  ],
  "properties": {
    "band": {
      "enum": [
        "low",
        "elevated",
        "high"
      ],
      "type": "string"
    },
    "tool": {
      "type": "string"
    },
    "flags": {
      "type": "array"
    },
    "scope": {
      "type": "string"
    },
    "risk_score": {
      "type": "number"
    },
    "flags_fired": {
      "type": "array"
    },
    "recommendation": {
      "type": "string"
    }
  }
}
rental_listing_risk annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "Rental Listing Risk & Fraud Engine",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
rental_verdict — Rental Risk Summary
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Combine deposit identifier checks with supplied country, viewing and listing indicators. Does not verify landlord identity, property ownership or safety of payment.

rental_verdict input schema
{
  "type": "object",
  "examples": [
    {
      "deposit_iban": "GB82WEST12345698765432",
      "landlord_lei": "529900T8BM49AURSDO55",
      "property_country": "DE",
      "deposit_before_viewing": true
    }
  ],
  "required": [
    "deposit_iban"
  ],
  "properties": {
    "deposit_iban": {
      "type": "string",
      "description": "Deposit IBAN."
    },
    "landlord_lei": {
      "type": "string",
      "description": "Landlord LEI (optional)."
    },
    "property_country": {
      "type": "string",
      "description": "Property country, ISO alpha-2."
    },
    "urgency_pressure": {
      "type": "boolean",
      "description": "Pressure to secure the property today."
    },
    "landlord_company_no": {
      "type": "string",
      "description": "Landlord UK company number (optional)."
    },
    "no_in_person_viewing": {
      "type": "boolean",
      "description": "No in-person or video viewing before payment."
    },
    "payment_irreversible": {
      "type": "boolean",
      "description": "Payment demanded via crypto/gift-card/wire-only."
    },
    "deposit_before_viewing": {
      "type": "boolean",
      "description": "True if a deposit is demanded before any viewing."
    },
    "price_below_market_pct": {
      "type": "number",
      "description": "How far below local market the rent is asked, in percent."
    },
    "contact_moves_offplatform": {
      "type": "boolean",
      "description": "Contact pushed off the listing platform."
    }
  }
}
rental_verdict output schema
{
  "type": "object",
  "required": [
    "verdict",
    "risk_score"
  ],
  "properties": {
    "band": {
      "type": "string"
    },
    "tool": {
      "type": "string"
    },
    "flags": {
      "type": "array"
    },
    "scope": {
      "type": "string"
    },
    "summary": {
      "type": "string"
    },
    "verdict": {
      "enum": [
        "clear",
        "caution",
        "high-risk"
      ],
      "type": "string"
    },
    "components": {
      "type": "object"
    },
    "risk_score": {
      "type": "number"
    }
  }
}
rental_verdict annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "50000",
    "price_ceiling": "250000"
  },
  "title": "Rental Risk Summary",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
reconcile — Settlement Reconciliation (ISO 20022 + NACHA)
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Deterministic reconciliation verdicts: pain.001/pacs.008 instructions vs camt.053 statements or NACHA ACH files, matched by end-to-end id and BigInt-exact amounts. Verdicts: SETTLED, UNPAID, AMOUNT_MISMATCH, DUPLICATE_PAYMENT, plus unmatched statement entries. Facts computed from the documents only — never inferred, never guessed. Returns signed XDR-1 receipt.

reconcile input schema
{
  "type": "object",
  "examples": [
    {
      "camt053_xml": "<Document>…</Document>",
      "pain001_xml": "<Document>…</Document>"
    }
  ],
  "properties": {
    "nacha_ach": {
      "type": "string",
      "description": "NACHA ACH text (94-char records) instead of camt053_xml"
    },
    "camt053_xml": {
      "type": "string",
      "description": "camt.053 statement (or use nacha_ach)"
    },
    "pacs008_xml": {
      "type": "string",
      "description": "pacs.008/PIX instructions (or use pain001_xml)"
    },
    "pain001_xml": {
      "type": "string",
      "description": "pain.001 instructions (or use pacs008_xml)"
    }
  }
}
reconcile output schema
{
  "type": "object",
  "required": [
    "valid",
    "reason"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "reason": {
      "type": "string"
    },
    "country": {
      "type": "string"
    },
    "normalized": {
      "type": "string"
    }
  }
}
reconcile annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "Settlement Reconciliation (ISO 20022 + NACHA)",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
create_b2b_invoice — Create B2B contractor invoice
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Create a merchant-direct Base token invoice. New automated payments require a durable EOA authorization journal and a configured provider. No active protocol fee; no generic bank-wire authority, independent delivery or contract-wallet guarantee.

create_b2b_invoice input schema
{
  "type": "object",
  "examples": [
    {
      "memo": "Sprint #14 Milestones",
      "merchant": "0xc59c85e661d34084a7769f955d17fd38254a6235",
      "amount_usdc": 50000,
      "client_name": "Apex AI"
    }
  ],
  "required": [
    "amount_usdc",
    "merchant"
  ],
  "properties": {
    "memo": {
      "type": "string",
      "description": "Engagement scope / milestone description (optional)."
    },
    "merchant": {
      "type": "string",
      "description": "Beneficiary contractor Base EVM wallet address (0x...)."
    },
    "referrer": {
      "type": "string",
      "description": "Optional attribution reference. Referral payouts and protocol fees are not active."
    },
    "amount_usdc": {
      "type": "number",
      "description": "Invoice total in USDC (e.g. 50000)."
    },
    "client_name": {
      "type": "string",
      "description": "Client enterprise organization name (optional)."
    }
  }
}
create_b2b_invoice output schema
{
  "type": "object",
  "required": [
    "valid",
    "invoice_id",
    "invoice_url",
    "pay_url"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "status": {
      "type": "string"
    },
    "pay_url": {
      "type": "string"
    },
    "merchant": {
      "type": "string"
    },
    "cart_hash": {
      "type": "string"
    },
    "invoice_id": {
      "type": "string"
    },
    "amount_usdc": {
      "type": "number"
    },
    "invoice_url": {
      "type": "string"
    },
    "protocol_fee_usdc": {
      "type": "number"
    }
  }
}
create_b2b_invoice annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "15000",
    "price_ceiling": "75000"
  },
  "title": "Create B2B contractor invoice",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
get_b2b_invoice — Get B2B invoice status
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Read public recorded invoice status and held-operation next action. Private records and credentials require a separate fresh read-only signature from the durably confirmed original payer; URLs and payment vouchers grant no read authority.

get_b2b_invoice input schema
{
  "type": "object",
  "examples": [
    {
      "invoice_id": "inv_example1234"
    }
  ],
  "required": [
    "invoice_id"
  ],
  "properties": {
    "invoice_id": {
      "type": "string",
      "description": "Unique invoice identifier, e.g. inv_a1b2c3d4e5f6."
    }
  }
}
get_b2b_invoice output schema
{
  "type": "object",
  "required": [
    "valid",
    "invoice_id",
    "status"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "status": {
      "type": "string"
    },
    "tx_hash": {
      "type": "string"
    },
    "merchant": {
      "type": "string"
    },
    "invoice_id": {
      "type": "string"
    },
    "settled_at": {
      "type": "number"
    },
    "amount_usdc": {
      "type": "number"
    },
    "private_record_url": {
      "type": "string"
    },
    "private_record_requires": {
      "type": "string"
    }
  }
}
get_b2b_invoice annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "10000",
    "price_ceiling": "50000"
  },
  "title": "Get B2B invoice status",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
simulate_spend_sentinel — Simulate Spend Sentinel policy defense and delivery predicates
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Run synthetic prompt-injection halts, malformed-delivery rejection, and bounded-spend eligibility examples under AP2 envelopes. No live escrow, refund, facilitator or chain action occurs.

simulate_spend_sentinel input schema
{
  "type": "object",
  "examples": [
    {
      "scenario": "injection"
    }
  ],
  "properties": {
    "scenario": {
      "type": "string",
      "description": "Simulation scenario: 'injection' (prompt attack), 'garbage' (bad subagent output), or 'provable' (verified settlement). Default 'injection'."
    }
  }
}
simulate_spend_sentinel output schema
{
  "type": "object",
  "required": [
    "valid",
    "scenario",
    "verdict"
  ],
  "properties": {
    "code": {
      "type": "string"
    },
    "tool": {
      "type": "string"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "status": {
      "type": "number"
    },
    "verdict": {
      "type": "string"
    },
    "scenario": {
      "type": "string"
    },
    "simulated": {
      "type": "boolean"
    },
    "telemetry": {
      "type": "string"
    },
    "action_taken": {
      "type": "string"
    },
    "is_synthetic": {
      "type": "boolean"
    },
    "settlement_recipient": {
      "type": [
        "string",
        "null"
      ]
    },
    "requested_amount_usdc": {
      "type": "number"
    },
    "actual_wallet_loss_usdc": {
      "type": "number"
    }
  }
}
simulate_spend_sentinel annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "15000",
    "price_ceiling": "75000"
  },
  "title": "Simulate Spend Sentinel policy defense and delivery predicates",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
aci_trust_lookup — ACI-1 Agent Credit & Trust Rating Lookup
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Deterministic agent trust scoring and non-custodial unsettled exposure advisory evaluation (ACI-1). Quantifies counterparty grade (T0-T3), historical success rate, and maximum suggested settlement exposure without uncollateralized lending or float.

aci_trust_lookup input schema
{
  "type": "object",
  "examples": [
    {
      "subject": "0x1111111111111111111111111111111111111111",
      "first_seen_days": 120,
      "settled_calls_90d": 1500,
      "settlement_success_rate": 0.999
    }
  ],
  "required": [
    "subject"
  ],
  "properties": {
    "role": {
      "type": "string",
      "description": "Agent role: 'payer' or 'seller' (default 'payer')"
    },
    "subject": {
      "type": "string",
      "description": "Agent wallet address (0x...) or canonical ANS identifier (c402:...) to evaluate"
    },
    "first_seen_days": {
      "type": "number",
      "description": "Days since first active on-chain settlement"
    },
    "dispute_loss_rate": {
      "type": "number",
      "description": "Historical dispute loss rate 0.0 to 1.0"
    },
    "settled_calls_90d": {
      "type": "number",
      "description": "Number of settled transactions in the past 90 days"
    },
    "sponsor_attestations": {
      "type": "array",
      "description": "Array of signed sponsorship edges"
    },
    "settlement_success_rate": {
      "type": "number",
      "description": "Historical settlement success rate 0.0 to 1.0"
    }
  }
}
aci_trust_lookup output schema
{
  "type": "object",
  "required": [
    "ok",
    "standard",
    "subject",
    "tier",
    "score_bp"
  ],
  "properties": {
    "ok": {
      "type": "boolean"
    },
    "tier": {
      "type": "string"
    },
    "subject": {
      "type": "string"
    },
    "evidence": {
      "type": "object"
    },
    "score_bp": {
      "type": "number"
    },
    "standard": {
      "type": "string"
    },
    "policy_notice": {
      "type": "string"
    },
    "receipt_digest": {
      "type": "string"
    },
    "unsettled_exposure_hint_minor": {
      "type": "string"
    }
  }
}
aci_trust_lookup annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "15000",
    "price_ceiling": "75000"
  },
  "title": "ACI-1 Agent Credit & Trust Rating Lookup",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
csp_commitment_create — CSP-1 Confidential Terms Commitment & Stealth Announce
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Generates cryptographic commitments to commercial terms and formats ERC-5564 dual-key stealth address announcements (CSP-1) for invoice-scale B2B payments on Base L2.

csp_commitment_create input schema
{
  "type": "object",
  "examples": [
    {
      "invoice_object": {
        "invoice_id": "INV-402",
        "line_items": [
          {
            "qty": 10,
            "sku": "H100_HR"
          }
        ],
        "amount_usdc": 5000
      }
    }
  ],
  "required": [
    "invoice_object"
  ],
  "properties": {
    "salt_hex": {
      "type": "string",
      "description": "Optional 32-byte salt (0x...). If omitted, cryptographically derived"
    },
    "view_tag": {
      "type": "string",
      "description": "Optional 1-byte hex view tag (0xNN)"
    },
    "invoice_object": {
      "type": "object",
      "description": "Structured invoice or commercial agreement object to commit to"
    },
    "ephemeral_pubkey": {
      "type": "string",
      "description": "Optional ephemeral public key for ERC-5564 announcement"
    },
    "stealth_recipient": {
      "type": "string",
      "description": "Optional Base L2 stealth recipient address for announcement"
    }
  }
}
csp_commitment_create output schema
{
  "type": "object",
  "required": [
    "ok",
    "standard",
    "invoice_commitment",
    "salt_hex"
  ],
  "properties": {
    "ok": {
      "type": "boolean"
    },
    "salt_hex": {
      "type": "string"
    },
    "standard": {
      "type": "string"
    },
    "announcement": {
      "type": "object"
    },
    "canonical_jcs": {
      "type": "string"
    },
    "invoice_commitment": {
      "type": "string"
    }
  }
}
csp_commitment_create annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "15000",
    "price_ceiling": "75000"
  },
  "title": "CSP-1 Confidential Terms Commitment & Stealth Announce",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
iso20022_validate — BAP-1 ISO 20022 Banking Message Validator
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Deterministic validation for institutional ISO 20022 XML/JSON payment messages (pain.001 credit transfer, pacs.008 customer credit, camt.053 bank statement) with XML DOCTYPE security guards, BigInt CtrlSum decimal sums, and ISO 13616 / 9362 / 17442 checksums (BAP-1).

iso20022_validate input schema
{
  "type": "object",
  "examples": [
    {
      "raw_payload": "<Document xmlns=\"urn:iso:std:iso:20022:tech:xsd:pain.001.001.09\"><CstmrCdtTrfInitn><GrpHdr><MsgId>MSG-2026-001</MsgId><NbOfTxs>1</NbOfTxs><CtrlSum>100.00</CtrlSum></GrpHdr><PmtInf><CdtTrfTxInf><Amt><InstdAmt Ccy=\"USD\">100.00</InstdAmt></Amt><CdtrAgt><FinInstnId><BICFI>DEUTDEDDFXX</BICFI></FinInstnId></CdtrAgt><CdtrAcct><Id><IBAN>DE89370400440532013000</IBAN></Id></CdtrAcct></CdtTrfTxInf></PmtInf></CstmrCdtTrfInitn></Document>"
    }
  ],
  "required": [
    "raw_payload"
  ],
  "properties": {
    "format": {
      "type": "string",
      "description": "'xml' or 'json' (default auto-detected)"
    },
    "namespace": {
      "type": "string",
      "description": "Expected ISO 20022 schema namespace (e.g. 'pain.001.001.09')"
    },
    "raw_payload": {
      "type": "string",
      "description": "Raw ISO 20022 XML or JSON message text"
    },
    "transactions": {
      "type": "array",
      "description": "Structured transactions array for JSON validation"
    }
  }
}
iso20022_validate output schema
{
  "type": "object",
  "required": [
    "ok",
    "standard",
    "valid"
  ],
  "properties": {
    "ok": {
      "type": "boolean"
    },
    "valid": {
      "type": "boolean"
    },
    "findings": {
      "type": "array"
    },
    "standard": {
      "type": "string"
    },
    "tx_count": {
      "type": "number"
    },
    "namespace": {
      "type": "string"
    },
    "message_id": {
      "type": "string"
    },
    "ctrl_sum_minor": {
      "type": "string"
    },
    "receipt_digest": {
      "type": "string"
    }
  }
}
iso20022_validate annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "BAP-1 ISO 20022 Banking Message Validator",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
iso20022_to_x402_intent — BAP-1 ISO 20022 to x402 Intent Mapper
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Translates validated ISO 20022 payment instructions (pain.001 / pacs.008) into deterministic EIP-712 payment-intent templates for autonomous x402 Base L2 USDC settlement (BAP-1). Zero custody, no fiat leg.

iso20022_to_x402_intent input schema
{
  "type": "object",
  "examples": [
    {
      "instruction": {
        "debtor": {
          "iban": "DE89370400440532013000"
        },
        "creditor": {
          "iban": "DE77100100100123456789"
        },
        "end_to_end_id": "E2E-1001",
        "instructed_amount": {
          "currency": "USD",
          "amount_str": "250.00",
          "amount_minor": "250000000"
        }
      },
      "seller_pay_to_address": "0xc59c85e661d34084a7769f955d17fd38254a6235"
    }
  ],
  "required": [
    "instruction"
  ],
  "properties": {
    "chain_id": {
      "type": "number",
      "description": "Target chain ID (default 8453 for Base)"
    },
    "instruction": {
      "type": "object",
      "description": "Validated BAP-1 payment instruction object"
    },
    "seller_pay_to_address": {
      "type": "string",
      "description": "Fallback recipient Base L2 address"
    },
    "counterparty_wallet_directory": {
      "type": "object",
      "description": "Enterprise IBAN -> 0x Base L2 wallet address map"
    }
  }
}
iso20022_to_x402_intent output schema
{
  "type": "object",
  "required": [
    "ok",
    "standard",
    "intent_template",
    "status"
  ],
  "properties": {
    "ok": {
      "type": "boolean"
    },
    "notice": {
      "type": "string"
    },
    "status": {
      "type": "string"
    },
    "standard": {
      "type": "string"
    },
    "intent_template": {
      "type": "object"
    }
  }
}
iso20022_to_x402_intent annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "20000",
    "price_ceiling": "100000"
  },
  "title": "BAP-1 ISO 20022 to x402 Intent Mapper",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
check_price — Zero-cost price index and gasless x402 quote generator
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Instant zero-cost pricing hook for code402 tools. Returns the live price, an opaque quote_id, TTL, and the settlement URL. Free forever — feeds the price index into an agent planner's context without creating any financial obligation. If the planner acts on the quote, it hits the settlement_url with an EIP-3009 signed voucher.

check_price input schema
{
  "type": "object",
  "examples": [
    {
      "tool": "iban-check",
      "amount": 1
    }
  ],
  "required": [
    "tool"
  ],
  "properties": {
    "tool": {
      "type": "string",
      "description": "Target tool name (e.g. 'iban-check', 'vendor-onboarding-pack')"
    },
    "amount": {
      "type": "number",
      "description": "Optional batch count or volume units (default 1)"
    }
  }
}
check_price output schema
{
  "type": "object",
  "required": [
    "tool",
    "valid",
    "price",
    "quote_id",
    "settlement_url"
  ],
  "properties": {
    "tool": {
      "type": "string"
    },
    "price": {
      "type": "number"
    },
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "ttl_ms": {
      "type": "number"
    },
    "currency": {
      "type": "string"
    },
    "quote_id": {
      "type": "string"
    },
    "settlement_url": {
      "type": "string"
    }
  }
}
check_price annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "0",
    "price_ceiling": "0"
  },
  "title": "Zero-cost price index and gasless x402 quote generator",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}
receipt_verify — Verify any XDR-1 receipt — free, stateless, any issuer
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Verifies a signed XDR-1 receipt from ANY x402 service: recomputes the canonical digest and recovers the signer, then compares it to the declared signer. Free forever — no account, no quota, no storage (stateless). A valid receipt proves the signer signed that tool call at that timestamp; it does NOT prove funds moved or any business claim.

receipt_verify input schema
{
  "type": "object",
  "examples": [
    {
      "receipt": {
        "v": "XDR-1",
        "ts": 0,
        "tier": "free",
        "tool": "iban-check",
        "nonce": "0x…",
        "payer": "0xc59c85e661d34084a7769f955d17fd38254a6235",
        "amount": "0",
        "signer": "0xa036e2e3e19c6d02f30b3a9eb0acd057e6d9a5c8",
        "recipient": "0xc59c85e661d34084a7769f955d17fd38254a6235",
        "signature": "0x…",
        "input_hash": "0x…",
        "output_hash": "0x…",
        "tool_version": "1"
      }
    }
  ],
  "required": [
    "receipt"
  ],
  "properties": {
    "receipt": {
      "type": "string",
      "description": "The full XDR-1 receipt object: v, tool, tool_version, input_hash, output_hash, payer, recipient, amount, nonce, ts, tier, signer, signature (optional successor/stream_state)."
    }
  }
}
receipt_verify output schema
{
  "type": "object",
  "properties": {
    "scope": {
      "type": "string"
    },
    "valid": {
      "type": "boolean"
    },
    "digest": {
      "type": "string"
    },
    "canonical": {
      "type": "string"
    },
    "declared_signer": {
      "type": "string"
    },
    "signer_recovered": {
      "type": "string"
    }
  }
}
receipt_verify annotations
{
  "x402": {
    "note": "Flat at-cost floor; a cost-linked guard may raise the floor under sustained Base fee spikes (never demand surge). The 402 challenge body is authoritative.",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "scheme": "exact",
    "chainId": 8453,
    "network": "base",
    "currency": "USDC",
    "price_floor": "0",
    "price_ceiling": "0"
  },
  "title": "Verify any XDR-1 receipt — free, stateless, any issuer",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true
}

Prompts

0 advertised

No prompt definitions available.

Resources

2 advertised

Complete Validator Catalog (65+ Global Formats)

Advertised by the server during the last successful anonymous check.

Stage-2 progressive disclosure catalog of all national, banking, tax, and corporate identifier formats.

Complete Validator Catalog (65+ Global Formats) URI
code402://catalog/validators

MIME type: application/json

XDR-1 182-Byte Binary Preimage & 65B Ed25519 Passport Specification

Advertised by the server during the last successful anonymous check.

Canonical byte offsets (0..182), Keccak-256 hashing rules, and 65B Ed25519 delegation passport bitmask layout.

XDR-1 182-Byte Binary Preimage & 65B Ed25519 Passport Specification URI
code402://spec/xdr-1

MIME type: application/json

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
944 ms
95th percentile latency
944 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 944 ms · metadata changed · 57 tool(s), 2 resource(s), 0 resource template(s), 0 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http hcrb-mcp https://hcrb.in/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add hcrb-mcp --url https://hcrb.in/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable hcrb-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "hcrb-mcp": {
      "url": "https://hcrb.in/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "hcrb-mcp": {
      "type": "streamableHttp",
      "url": "https://hcrb.in/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start hcrb-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "hcrb-mcp": {
      "type": "http",
      "url": "https://hcrb.in/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http hcrb-mcp https://hcrb.in/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://hcrb.in/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "hcrb-mcp": {
      "serverUrl": "https://hcrb.in/mcp"
    }
  }
}

Let your agent find its tools

Find servers like HCRB MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.