{
  "name": "payapi-market",
  "title": "PayAPI Market",
  "description": "Discovery tools for x402 APIs that AI agents pay for per request in USDC on Base. Search, list and fetch listings from the live marketplace catalogue. Free and read-only.",
  "version": "1.0.0",
  "protocolVersion": "2025-06-18",
  "servers": [
    {
      "type": "streamable-http",
      "url": "https://payapi.market/mcp",
      "stateless": true,
      "authentication": "none"
    }
  ],
  "capabilities": {
    "tools": { "listChanged": false }
  },
  "tools": [
    { "name": "search_apis", "description": "Free-text search across the live catalogue." },
    { "name": "list_apis", "description": "Browse the live catalogue, optionally by category." },
    { "name": "get_api", "description": "Fetch one live listing by id or slug." }
  ],
  "pricing": {
    "free": true,
    "note": "Every method on this server is free, including initialize, tools/list and tools/call. The server never returns HTTP 402 and never spends money. It returns base_urls; paying a listed API is done by the caller, directly against that provider's own x402 challenge."
  },
  "documentation": "https://payapi.market/agent",
  "openapi": "https://payapi.market/openapi.json"
}