ProofRail MCP

Will your MCP integration survive the next deployment?

For agents and teams integrating third-party MCP servers: check the endpoint from outside your own stack, pin the tools you depend on, and keep verifiable evidence before a release. No local test runner to operate.

Find servers and test compatibility free. Paid checks add required-tool enforcement, schema fingerprints and a reusable baseline.

Start with your endpoint · Browse MCP servers

Discover MCP servers

Browse the stable MCP Radar catalog · machine-readable catalog

Agents can call find_mcp_servers on ProofRail MCP for task-oriented discovery.

Verify before paying

Free HTTP preflight: POST https://drkdm4jd-8767.uks1.devtunnels.ms/api/preflight
MCP tool: mcp_release_preflight

Buy a certification receipt

$0.10 via x402 on eip155:8453. Paid tool: mcp_release_certify. HTTP: POST https://drkdm4jd-8767.uks1.devtunnels.ms/api/certify. Purchase instructions and example.

The paid result is PASS, FAIL, or PARTIAL with a deterministic evidence receipt and a public verification URL that can be shared with another agent.

Agent interfaces

• MCP Streamable HTTP
• LLM-readable instructions
• OpenAPI
• Stable A2A Agent Card
• Stable x402 discovery

Radar observations are point-in-time compatibility observations, not security audits or uptime guarantees.