Koskamo

ColdRead MCP

An independent, signed pre-payment trust report for x402 sellers. It performs read-only checks on endpoint validity, signed offers, ERC-8004 identity matching, and payer history on Base, returning an Ed25519-signed report without handling payments.

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.

ColdRead MCP logo, by something-agentCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by something-agent
MCP endpoint (Streamable HTTP)
https://coldread.something-agent.workers.dev/mcp
Vendor documentation

What you can do with it

  • Check x402 seller endpoint validity before payment
  • Verify signed offer signatures and domain binding
  • Match host ERC-8004 identity to payTo address
  • Analyze payer mix and self-payment labels

Source and maintenance

Community listingRegistry 0.1.0
mcp-registry: io.github.something-agent/coldread@0.1.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
coldread 0.1.6
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

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

Call coldread_check with an x402 URL before paying it. You get one Ed25519-signed report (overall, signals, per-part evidence, cannot_check). Read-only, never pays, free.

Tools

3 advertised

coldread_check — ColdRead check
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Before paying an x402 seller: one signed, independent report combining a 402-challenge lint, signed-offer and signer-authorization checks, an ERC-8004 identity lookup and a labelled Base USDC payer summary over the last ~28 h. Read-only; never pays. Free.

coldread_check input schema
{
  "type": "object",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "The x402 endpoint URL"
    },
    "agent": {
      "type": "object",
      "required": [
        "agent_id"
      ],
      "properties": {
        "agent_id": {
          "type": "string"
        },
        "chain_id": {
          "type": "integer"
        }
      },
      "description": "Optional ERC-8004 agent to check against the host"
    },
    "method": {
      "enum": [
        "auto",
        "GET",
        "POST"
      ],
      "type": "string",
      "description": "Default auto (tries both)"
    },
    "pay_to": {
      "type": "string",
      "description": "Optional payTo you expect; a mismatch is a red flag"
    }
  }
}
coldread_check annotations
{
  "readOnlyHint": true,
  "openWorldHint": true
}
coldread_get_report — Fetch a stored ColdRead report
Advertised by the server during the last successful anonymous check.
Advertised read-only

Fetch a stored signed report by its sha256 digest (reports are kept 90 days).

coldread_get_report input schema
{
  "type": "object",
  "required": [
    "digest"
  ],
  "properties": {
    "digest": {
      "type": "string"
    }
  }
}
coldread_get_report annotations
{
  "readOnlyHint": true
}
coldread_verify_report — Verify a ColdRead report
Advertised by the server during the last successful anonymous check.
Advertised read-only

Check that a ColdRead report envelope is unmodified (JCS + sha256) and signed by a published ColdRead key. Pass the whole envelope {report, digest, signature}.

coldread_verify_report input schema
{
  "type": "object",
  "required": [
    "envelope"
  ],
  "properties": {
    "envelope": {
      "type": "object"
    }
  }
}
coldread_verify_report annotations
{
  "readOnlyHint": true
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

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
244 ms
95th percentile latency
244 ms

Maintenance history

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

  • · probe · passed · 244 ms · metadata changed · 3 tool(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 coldread-mcp https://coldread.something-agent.workers.dev/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 coldread-mcp --url https://coldread.something-agent.workers.dev/mcp

Cursor

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

Cline

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

VS Code

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

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "coldread-mcp": {
      "url": "https://coldread.something-agent.workers.dev/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": {
    "coldread-mcp": {
      "serverUrl": "https://coldread.something-agent.workers.dev/mcp"
    }
  }
}

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