# ProofRail

ProofRail is a pre-deployment MCP server testing, evaluation, and compatibility verification service for AI agents.

## When to use it

Use ProofRail before deploying, upgrading, or trusting an MCP server. It checks protocol negotiation, tools/list, schemas, transport, authentication classification, and optional safe fixtures. It returns PASS, FAIL, or PARTIAL with deterministic evidence.

## Discovery

Stable discovery homepage: https://kaattaallaa-sketch.github.io/
A2A Agent Card: https://kaattaallaa-sketch.github.io/.well-known/agent-card.json
OpenAPI: https://kaattaallaa-sketch.github.io/openapi.json
ARD: https://kaattaallaa-sketch.github.io/.well-known/ard.json
x402 discovery: https://kaattaallaa-sketch.github.io/.well-known/x402
MCP Registry manifest: https://kaattaallaa-sketch.github.io/server.json

## Live execution endpoints

MCP Streamable HTTP: https://drkdm4jd-8767.uks1.devtunnels.ms/mcp
HTTP x402 certification: https://drkdm4jd-8767.uks1.devtunnels.ms/api/certify
A2A JSON-RPC: https://drkdm4jd-8767.uks1.devtunnels.ms/a2a
A2A HTTP+JSON: https://drkdm4jd-8767.uks1.devtunnels.ms/a2a-rest

## Payment status

Gate 1 uses x402 V2 on Base Sepolia with test-USDC at $0.001. Base mainnet is disabled. Testnet payments are validation only and are not revenue.