Agent Contract Proof
Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.
Should I use this
Quality & Safety
B
Findings (1)
- LOWTool 'verify_agent_contract' description lacks action verbin verify_agent_contract
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
~157Tokens (tool definitions)
~1.7 KBTypical response size
Minimal attention impact (0.12% 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": {
"verify-agent-contract": {
"url": "https://agent-contract-proof.mattskowronis.workers.dev/mcp"
}
}
}Remote endpoints
https://agent-contract-proof.mattskowronis.workers.dev/mcpstreamable-httpWhat it can do
Tool inventory
Tools (1)
🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
⚪verify_agent_contract(url, method, expected_hash)
Compare an advertised agent contract with its live x402 challenge.
Input Schema
{
"type": "object",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public HTTP or HTTPS agent/API URL. An origin URL may be resolved through discovery metadata."
},
"method": {
"type": "string",
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE"
],
"description": "Optional method to probe. If omitted, the advertised method is used, then GET as a fallback."
},
"expected_hash": {
"type": "string",
"pattern": "^[a-fA-F0-9]{64}$",
"description": "Optional previous contract_hash. A mismatch proves the public contract changed."
}
},
"required": [
"url"
],
"additionalProperties": false
}Community
Evidence
Recent observations
verifiedversion not recorded1 tools
verifiedversion not recorded1 tools