ColdRead

Free signed trust report on an x402 endpoint: lint, signed offers, ERC-8004, payer mix.

Should I use this

Quality & Safety

A
Description quality
93%
Schema completeness
87%
Naming quality
80%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~351Tokens (tool definitions)
~662 BTypical response size
Minimal attention impact (0.27% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "coldread": {
      "url": "https://coldread.something-agent.workers.dev/mcp"
    }
  }
}

Remote endpoints

https://coldread.something-agent.workers.dev/mcpstreamable-http

What it can do

Tool inventory

Tools (3)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢coldread_check(url, method, pay_to, agent)

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.

Input Schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "The x402 endpoint URL"
    },
    "method": {
      "type": "string",
      "enum": [
        "auto",
        "GET",
        "POST"
      ],
      "description": "Default auto (tries both)"
    },
    "pay_to": {
      "type": "string",
      "description": "Optional payTo you expect; a mismatch is a red flag"
    },
    "agent": {
      "type": "object",
      "description": "Optional ERC-8004 agent to check against the host",
      "properties": {
        "chain_id": {
          "type": "integer"
        },
        "agent_id": {
          "type": "string"
        }
      },
      "required": [
        "agent_id"
      ]
    }
  },
  "required": [
    "url"
  ]
}
🟢coldread_get_report(digest)

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

Input Schema

{
  "type": "object",
  "properties": {
    "digest": {
      "type": "string"
    }
  },
  "required": [
    "digest"
  ]
}
🟢coldread_verify_report(envelope)

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

Input Schema

{
  "type": "object",
  "properties": {
    "envelope": {
      "type": "object"
    }
  },
  "required": [
    "envelope"
  ]
}

Community

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Evidence

Recent observations

verifiedversion not recorded3 tools