ProofRail

Check the MCP contract your integration depends on.

Full certification costs $0.10 via x402 on eip155:8453 and returns PASS, FAIL or PARTIAL plus a payment-linked receipt with a public verification URL.

• Stable MCP Radar catalog
• Start here: free preflight and paid deployment checks
• Paid contract checks: required tools, schema drift and verifiable receipt
• Live MCP endpoint
• Stable OpenAPI discovery
• Stable x402 discovery

Execution occurs at the live ProofRail origin declared by the discovery documents; this GitHub Pages origin is the stable discovery facade.