X402 Discovery MCP

Name: X402 Discovery MCP
Author: rplryan

Verified

Runtime discovery layer for x402-payable APIs. Agents discover and route to pay-per-call x402 endpoints by capability, get quality-ranked results with trust scores (0-100), and pay per query via x402. Includes MCP server, Python SDK, and CLI (npm install -g x402scout).

by rplryan 1 MIT Python Intermediate stdiosse

View on GitHub Install Guide

Install

Claude Code

claude mcp add x402-discovery-mcp -- uvx x402-discovery-mcp

Cursor

{
  "mcpServers": {
    "x402-discovery-mcp": {
      "command": "uvx",
      "args": [
        "x402-discovery-mcp"
      ]
    }
  }
}

VS Code

{
  "mcp": {
    "servers": {
      "x402-discovery-mcp": {
        "command": "uvx",
        "args": [
          "x402-discovery-mcp"
        ]
      }
    }
  }
}

Windsurf

{
  "mcpServers": {
    "x402-discovery-mcp": {
      "command": "uvx",
      "args": [
        "x402-discovery-mcp"
      ]
    }
  }
}

Claude Desktop

{
  "mcpServers": {
    "x402-discovery-mcp": {
      "command": "uvx",
      "args": [
        "x402-discovery-mcp"
      ]
    }
  }
}

Remote Endpoint Available

This server offers a hosted endpoint — no local installation required.

https://x402-scout-relay.onrender.com/sse

Safety Report

83% Verified

Scanned yesterday

5 passed 1 warnings

Security

Authentication

details

Weak auth signals: auth_header

Warning

CORS Policy

details

No CORS-relevant transport detected (likely stdio)

N/A

Rate Limiting

details

No rate limiting mechanism detected

Info

Known CVEs

details

No known CVEs in dependencies

Pass

Code Quality

Dependency Audit

details

No known vulnerable dependencies detected

Pass

Dangerous Patterns

details

No dangerous code patterns detected

Pass

License

details

License: MIT

Pass

Community

Maintenance Status

details

Last commit 7 days ago

Pass

Learn about our security methodology →

Compatibility

Claude CodeFull support

Tested

CursorFull support

Tested

VS CodeFull support via Copilot

Tested

WindsurfFull support

Tested

Claude DesktopFull support

Tested

Frequently Asked Questions

What is X402 Discovery MCP?

Is X402 Discovery MCP safe to use?

Yes, X402 Discovery MCP has passed our 8-point security audit and is rated Verified. All checks including authentication, dependency audit, and known CVE scan passed.

What are alternatives to X402 Discovery MCP?

Similar MCP servers include Metatool App, PaperBanana, MCPJungle. Each serves a similar purpose but may differ in features, language, and compatibility.