{"name":"PreFlight Checker","description":"Pre-flight checks for autonomous agents: verify a package, repo, domain, or x402 service before you trust it. Paid per call in USDC via x402 on Base mainnet, no signup, no API key.","discovery":"https://x402-api-catalog.onrender.com/.well-known/x402","categories":{"Code checks":{"GET /api/trust-check":"$0.02 - npm package trust/risk check","GET /api/repo-health":"$0.02 - GitHub repo health check"},"Network checks":{"GET /api/domain-check":"$0.02 - domain liveness check"},"Chain checks":{"GET /api/contract-check":"$0.05 - EVM token contract safety check"},"Ops checks":{"GET /api/x402-doctor":"$1.00 - audit another x402 service","GET /api/mcp-audit":"$0.06 - MCP server safety audit"}}}