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.
https://hcrb.in/mcpWhat its tools do
57 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.
Read-only (57)
crypto_tickererc20_balancefx_spot_price_oracleblock_infotx_activitytoken_contract_riskclean_markdown_scrapercontext_distillinstant_json_schema_verifierbalance_checkcalculate_fx_savingsiban_checklei_checkvat_mod97_checkswift_bic_checkbatch_validatevendor_onboarding_packindia_supplier_checkpre_disbursement_guardgstin_checkifsc_checksanctions_address_screencompany_number_formataba_routing_checkein_format_checkabn_checke164_checksedol_checkisin_checkean13_checkcnpj_checkuscc_checkjapan_corp_checkkra_pin_checkrfc_checkiso4217_currency_checkupi_vpa_checkpan_format_checkuae_trn_checkchina_supplier_checkjapan_supplier_checklatam_supplier_checkgulf_supplier_checkafrica_supplier_checkrent_deposit_guardrental_listing_riskrental_verdictreconcilecreate_b2b_invoiceget_b2b_invoicesimulate_spend_sentinelaci_trust_lookupcsp_commitment_createiso20022_validateiso20022_to_x402_intentcheck_pricereceipt_verify
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
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
{
"tools": {},
"prompts": {},
"resources": {}
}Server-provided instructions
Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.
Tools
57 advertised
crypto_ticker — Crypto ticker
Spot USD price for a crypto ticker or CoinGecko id from public price feeds, cached 60 s. Result carries a signed receipt.
{
"type": "object",
"examples": [
{
"symbol": "btc"
}
],
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"description": "Ticker symbol (btc, eth, sol, …) or a CoinGecko asset id (bitcoin, ethereum, …)."
}
}
}{
"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"
}
}
}{
"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
Raw and formatted ERC-20 balanceOf for an address on Base, with decimals read from the token. Result carries a signed receipt.
{
"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."
}
}
}{
"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"
}
}
}{
"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
Reference fiat and stablecoin conversion rate from a static table, not a live feed. Returns rate and inverse; result carries a signed receipt.
{
"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)."
}
}
}{
"type": "object",
"required": [
"pair",
"rate",
"inverse",
"timestamp",
"source"
],
"properties": {
"pair": {
"type": "string"
},
"rate": {
"type": "number"
},
"source": {
"type": "string"
},
"inverse": {
"type": "number"
},
"timestamp": {
"type": "number"
}
}
}{
"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
Base chain (8453) block header data: block number, timestamp, transaction count and base fee for any block. Result carries a signed receipt.
{
"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."
}
}
}{
"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"
}
}
}{
"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
Outbound transaction count (nonce) and contract-or-EOA check for an address on Base. Result carries a signed receipt.
{
"type": "object",
"examples": [
{
"address": "0xc59c85e661d34084a7769f955d17fd38254a6235"
}
],
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "EVM address, 0x-prefixed."
}
}
}{
"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"
}
}
}{
"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)
Deterministic Base contract facts: ERC-20 metadata, proxy slots, owner(), privileged-function selectors and flags. Not a safety verdict. Result carries a signed receipt.
{
"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."
}
}
}{
"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"
}
}
}{
"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
Fetch a public web page by URL (or take your HTML) and return Markdown plus headings. No JavaScript rendering. Result carries a signed receipt.
{
"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."
}
}
}{
"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"
}
}
}{
"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
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.
{
"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)."
}
}
}{
"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"
}
}
}{
"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
Validate JSON data payloads against schema definitions. Preflighted for agent tool call pipelines.
{
"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."
}
}
}{
"type": "object",
"required": [
"valid",
"errors",
"execution_ms"
],
"properties": {
"valid": {
"type": "boolean"
},
"errors": {
"type": "array"
},
"execution_ms": {
"type": "number"
}
}
}{
"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
Native ETH and one ERC-20 balance (default USDC) for an address on Base, raw and formatted. Result carries a signed receipt.
{
"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)."
}
}
}{
"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"
}
}
}{
"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
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.
{
"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."
}
}
}{
"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"
}
}
}{
"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
Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.
{
"type": "object",
"examples": [
{
"iban": "CH93 0076 2011 6238 5295 7"
}
],
"required": [
"iban"
],
"properties": {
"iban": {
"type": "string",
"description": "IBAN to validate; spaces allowed."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
Validate a 20-character LEI and MOD-97 check digits. No registry lookup, active-registration check or legal-entity identity verification.
{
"type": "object",
"examples": [
{
"lei": "529900T8BM49AURSDO55"
}
],
"required": [
"lei"
],
"properties": {
"lei": {
"type": "string",
"description": "20-character Legal Entity Identifier."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
Check the supported Belgian VAT format and MOD-97 checksum. BE only; not VIES, other EU VAT formats, registration status or tax compliance.
{
"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."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
Check SWIFT/BIC structure and country code. Does not establish bank existence, active routing or beneficiary identity.
{
"type": "object",
"examples": [
{
"bic": "DEUTDEFF500"
}
],
"required": [
"bic"
],
"properties": {
"bic": {
"type": "string",
"description": "SWIFT/BIC code, 8 or 11 characters; spaces/dashes allowed."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
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.
{
"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)."
}
}
}{
"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"
}
}
}{
"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
Check supplied IBAN, LEI, Belgian VAT and UK company-number fields in one result. Structural checks only; no ownership, registry or fraud clearance.
{
"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)."
}
}
}{
"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"
}
}
}{
"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
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.
{
"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)"
}
}
}{
"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"
}
}
}{
"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
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.
{
"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)."
}
}
}{
"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"
}
}
}{
"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)
Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.
{
"type": "object",
"examples": [
{
"gstin": "27AAPFU0939F1ZV"
}
],
"required": [
"gstin"
],
"properties": {
"gstin": {
"type": "string",
"description": "15-character Indian Goods and Services Tax Identification Number."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
Check the 11-character Indian IFSC format, including its fifth-character zero. No bank-branch registry lookup or account verification.
{
"type": "object",
"examples": [
{
"ifsc": "HDFC0000123"
}
],
"required": [
"ifsc"
],
"properties": {
"ifsc": {
"type": "string",
"description": "11-character Indian Financial System Code."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
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.
{
"type": "object",
"examples": [
{
"subject": "0x7f367cc41522ce07553e823bf3be79a889debe1b"
}
],
"required": [
"subject"
],
"properties": {
"subject": {
"type": "string",
"description": "EVM address (0x...) or ISO 3166-1 country code / jurisdiction name"
}
}
}{
"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"
}
}
}{
"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
Check supported UK company-number syntax. No Companies House lookup, entity-existence check or active-registration verification.
{
"type": "object",
"examples": [
{
"company_number": "12345678"
}
],
"required": [
"company_number"
],
"properties": {
"company_number": {
"type": "string",
"description": "8 digits, or 2 letters + 6 digits."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
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.
{
"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."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
Validate US Employer Identification Number FORMAT (NN-NNNNNNN). Use during US business counterparty KYB verification. Returns signed XDR-1 receipt.
{
"type": "object",
"examples": [
{
"ein": "12-3456789"
}
],
"required": [
"ein"
],
"properties": {
"ein": {
"type": "string",
"description": "US EIN, 9 digits; dashes/spaces allowed."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
Validate an Australian Business Number by its mod-89 checksum (11 digits). Required before invoice payment to Australian contractors. Returns signed XDR-1 receipt.
{
"type": "object",
"examples": [
{
"abn": "51 824 753 556"
}
],
"required": [
"abn"
],
"properties": {
"abn": {
"type": "string",
"description": "11-digit Australian Business Number; spaces allowed."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
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.
{
"type": "object",
"examples": [
{
"phone": "+14155552671"
}
],
"required": [
"phone"
],
"properties": {
"phone": {
"type": "string",
"description": "International phone number, e.g. +14155552671."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
Validate a UK/Ireland security identifier by its (1,3,1,7,3,9)-weight mod-10 checksum. Returns signed XDR-1 receipt.
{
"type": "object",
"examples": [
{
"sedol": "B0YBKJ7"
}
],
"required": [
"sedol"
],
"properties": {
"sedol": {
"type": "string",
"description": "7-character SEDOL code."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
Validate an ISIN (ISO 6166) by structure and Luhn mod-10 check digit over the A=10…Z=35 converted string.
{
"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."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
Validate an EAN-13 barcode by its mod-10 checksum (odd positions x1, even positions x3).
{
"type": "object",
"examples": [
{
"code": "5901234123457"
}
],
"required": [
"code"
],
"properties": {
"code": {
"type": "string",
"description": "13-digit EAN-13 barcode; spaces/dashes allowed."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
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.
{
"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)."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
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.
{
"type": "object",
"examples": [
{
"uscc": "91330100799655058B"
}
],
"required": [
"uscc"
],
"properties": {
"uscc": {
"type": "string",
"description": "18-character Chinese Unified Social Credit Code (e.g. 91330100799655058B)."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
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.
{
"type": "object",
"examples": [
{
"number": "1180301018771"
}
],
"required": [
"number"
],
"properties": {
"number": {
"type": "string",
"description": "13-digit Japanese Corporate Number (e.g. 1180301018771)."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
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.
{
"type": "object",
"examples": [
{
"pin": "P051112223Z"
}
],
"required": [
"pin"
],
"properties": {
"pin": {
"type": "string",
"description": "11-character KRA PIN (e.g. P051112223Z)."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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)
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.
{
"type": "object",
"examples": [
{
"rfc": "BBA830831LJ2"
}
],
"required": [
"rfc"
],
"properties": {
"rfc": {
"type": "string",
"description": "12 or 13 character Mexican RFC (e.g. BBA830831LJ2)."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
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).
{
"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)."
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
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.
{
"type": "object",
"examples": [
{
"vpa": "merchant@okhdfcbank"
}
],
"required": [
"vpa"
],
"properties": {
"vpa": {
"type": "string",
"description": "UPI Virtual Payment Address (e.g. 'merchant@okhdfcbank', '9876543210@paytm')"
}
}
}{
"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"
}
}
}{
"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
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).
{
"type": "object",
"examples": [
{
"pan": "AAACP1234M"
}
],
"required": [
"pan"
],
"properties": {
"pan": {
"type": "string",
"description": "10-character PAN string (e.g. 'AAACP1234M')"
}
}
}{
"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"
}
}
}{
"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
Deterministic validation of UAE 15-digit Tax Registration Number (TRN) issued by the Federal Tax Authority (FTA) for VAT purposes.
{
"type": "object",
"examples": [
{
"trn": "100123456700003"
}
],
"required": [
"trn"
],
"properties": {
"trn": {
"type": "string",
"description": "15-digit UAE TRN string (starts with 100)"
}
}
}{
"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"
}
}
}{
"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
One call, one receipt: USCC + settlement IBAN + SWIFT/BIC for a Chinese counterparty. Deterministic structure and checksum validation with explicit scope per identifier.
{
"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)"
}
}
}{
"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"
}
}
}{
"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
One call, one receipt: 13-digit Corporate Number + settlement IBAN for a Japanese counterparty. Deterministic check digits, explicit scope.
{
"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)"
}
}
}{
"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"
}
}
}{
"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
One call, one receipt: Brazilian CNPJ + Mexican RFC + settlement IBAN. Deterministic checks for the two largest LatAm corridors in one paid call.
{
"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)"
}
}
}{
"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"
}
}
}{
"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
One call, one receipt: UAE TRN + settlement IBAN + SWIFT/BIC. Deterministic structure validation for Gulf trade corridors, scope stated per identifier.
{
"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)"
}
}
}{
"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"
}
}
}{
"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
One call, one receipt: Kenya KRA PIN + settlement IBAN + SWIFT/BIC. Deterministic structural checks for East African trade corridors.
{
"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)"
}
}
}{
"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"
}
}
}{
"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
Check deposit IBAN checksum and supplied country/viewing indicators. Rule-based risk signals only; no ownership verification, escrow protection or guarantee against theft.
{
"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."
}
}
}{
"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"
}
}
}{
"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
Explainable tenancy fraud risk score evaluated across irreversible payment demands, off-platform pressure, stolen photos, and advance wire signals. Deterministic rule engine.
{
"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."
}
}
}{
"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"
}
}
}{
"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
Combine deposit identifier checks with supplied country, viewing and listing indicators. Does not verify landlord identity, property ownership or safety of payment.
{
"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."
}
}
}{
"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"
}
}
}{
"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)
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.
{
"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)"
}
}
}{
"type": "object",
"required": [
"valid",
"reason"
],
"properties": {
"tool": {
"type": "string"
},
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"reason": {
"type": "string"
},
"country": {
"type": "string"
},
"normalized": {
"type": "string"
}
}
}{
"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
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.
{
"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)."
}
}
}{
"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"
}
}
}{
"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
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.
{
"type": "object",
"examples": [
{
"invoice_id": "inv_example1234"
}
],
"required": [
"invoice_id"
],
"properties": {
"invoice_id": {
"type": "string",
"description": "Unique invoice identifier, e.g. inv_a1b2c3d4e5f6."
}
}
}{
"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"
}
}
}{
"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
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.
{
"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'."
}
}
}{
"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"
}
}
}{
"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
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.
{
"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"
}
}
}{
"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"
}
}
}{
"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
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.
{
"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"
}
}
}{
"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"
}
}
}{
"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
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).
{
"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"
}
}
}{
"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"
}
}
}{
"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
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.
{
"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"
}
}
}{
"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"
}
}
}{
"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
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.
{
"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)"
}
}
}{
"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"
}
}
}{
"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
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.
{
"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)."
}
}
}{
"type": "object",
"properties": {
"scope": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"digest": {
"type": "string"
},
"canonical": {
"type": "string"
},
"declared_signer": {
"type": "string"
},
"signer_recovered": {
"type": "string"
}
}
}{
"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
Resources
2 advertised
Complete Validator Catalog (65+ Global Formats)
Stage-2 progressive disclosure catalog of all national, banking, tax, and corporate identifier formats.
code402://catalog/validatorsXDR-1 182-Byte Binary Preimage & 65B Ed25519 Passport Specification
Canonical byte offsets (0..182), Keccak-256 hashing rules, and 65B Ed25519 delegation passport bitmask layout.
code402://spec/xdr-190-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.
- 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.
Claude Code
claude mcp add --transport http hcrb-mcp https://hcrb.in/mcpCodex
codex mcp add hcrb-mcp --url https://hcrb.in/mcpCursor
{
"mcpServers": {
"hcrb-mcp": {
"url": "https://hcrb.in/mcp"
}
}
}Cline
{
"mcpServers": {
"hcrb-mcp": {
"type": "streamableHttp",
"url": "https://hcrb.in/mcp",
"disabled": false
}
}
}VS Code
{
"servers": {
"hcrb-mcp": {
"type": "http",
"url": "https://hcrb.in/mcp"
}
}
}Gemini CLI
gemini mcp add --transport http hcrb-mcp https://hcrb.in/mcpClaude Desktop
https://hcrb.in/mcpWindsurf
{
"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.