# ProofRail MCP

> MCP server verification, testing, evaluation, compatibility test, and release preflight before deployment.

Use ProofRail before deploying, upgrading, or trusting an MCP server.

## Canonical service

- MCP Streamable HTTP: https://drkdm4jd-8767.uks1.devtunnels.ms/mcp
- HTTP x402 API: https://drkdm4jd-8767.uks1.devtunnels.ms/api/certify
- API index: https://drkdm4jd-8767.uks1.devtunnels.ms/api/v1
- OpenAPI: https://drkdm4jd-8767.uks1.devtunnels.ms/openapi.json
- Stable A2A Agent Card: https://kaattaallaa-sketch.github.io/proofrail-mcp/.well-known/agent-card.json
- Live A2A Agent Card: https://drkdm4jd-8767.uks1.devtunnels.ms/.well-known/agent-card.json
- A2A JSON-RPC: https://drkdm4jd-8767.uks1.devtunnels.ms/a2a
- A2A HTTP+JSON: https://drkdm4jd-8767.uks1.devtunnels.ms/a2a-rest
- Stable x402 discovery: https://kaattaallaa-sketch.github.io/proofrail-mcp/.well-known/x402
- Live x402 discovery: https://drkdm4jd-8767.uks1.devtunnels.ms/.well-known/x402
- MCP Server Card: https://drkdm4jd-8767.uks1.devtunnels.ms/mcp/server.json
- RFC 9727 API Catalog: https://drkdm4jd-8767.uks1.devtunnels.ms/.well-known/api-catalog
- ARD catalog: https://drkdm4jd-8767.uks1.devtunnels.ms/.well-known/ard.json

## Paid operation

Tool: mcp_release_certify

Required input:
- target_url: public MCP Streamable HTTP endpoint

Optional:
- declared_protocol_version
- check_profile: basic
- fixture_id: server-configured safe fixture only

Output: PASS, FAIL, or PARTIAL plus deterministic evidence receipt.

## Payment

- Protocol: x402 V2
- Network: Base Sepolia (eip155:84532)
- Price: $0.001 test-USDC
- Mainnet: disabled

## Discovery records

- MCP Registry: io.github.kaattaallaa-sketch/proofrail
- Wellknown MCP: https://wellknown.network/agents/proofrail
- Wellknown A2A: https://wellknown.network/agents/proofrail-access-agent
- Global A2A Registry: https://www.a2a-registry.org/agent/io.github.proofrail_access_agent
- AllAgents: https://allagents.app/agent/proofrail-mcp-release-certifier
- x402 Bazaar aggregator search: https://x402-bazaar.com/v1/search?q=ProofRail