{"name":"PayAPI Market agent discovery","description":"Read-only JSON view of the live marketplace catalogue. Every response is derived from the listings database at request time, so newly-live listings appear automatically.","version":"1.0.0","notes":["Only listings with status=live are ever returned.","search and list default to verified_only=true (settlement-verified listings only). Pass verified_only=false to include live-but-unverified listings.","get returns a named listing regardless of verification, and reports payment_verified honestly.","Prices are USDC per request.","network is the free-text value stored on the listing, passed through unmodified rather than normalised to a chain id. Every live listing is Base mainnet (chain id eip155:8453), but the stored string is \"base\", with a small number of rows using \"Base\". Compare case-insensitively.","payment_verified means we paid for one route on that listing from our own wallet and got real product back, with the settlement recorded on-chain. It is per-listing evidence, not a per-route guarantee: a listing with many routes may have had only its cheapest route verified.","This discovery API is read-only and never settles a payment. To actually call a listed API, read its base_url from get, request it unpaid to receive the x402 402 challenge, then pay per that challenge.","MCP: there are two servers and they are different. https://payapi.market/mcp is the marketplace catalogue server, a free stateless streamable-HTTP wrapper over these same routes exposing search_apis, list_apis and get_api; every method on it is free and it never returns a 402. The SSE endpoint advertised as `mcp` in /.well-known/x402 is a first-party server exposing the UK property tools only, and its tools/call is paid. Manifest: https://payapi.market/.well-known/mcp.json","mcp_endpoint on a listing row is provider-supplied and unverified. We do not probe it, so treat a non-null value as a claim rather than a guarantee."],"endpoints":[{"route":"GET /agent/search","purpose":"search_apis(query, verified_only=true)","params":{"q":"required, free text","verified_only":"optional, default true","limit":"optional, 1-100, default 20"},"example":"https://payapi.market/agent/search?q=property"},{"route":"GET /agent/list","purpose":"list_apis(category=null, verified_only=true)","params":{"category":"optional, omit for all","verified_only":"optional, default true","limit":"optional, 1-500, default 100"},"example":"https://payapi.market/agent/list?category=Finance"},{"route":"GET /agent/get","purpose":"get_api(id_or_slug)","params":{"id":"required, listing uuid or marketplace slug"},"example":"https://payapi.market/agent/get?id=uk-hmo-licence-api"}],"fields":["id","slug","name","description","category","provider_name","base_url","mcp_endpoint","endpoints_count","price_min","price_max","network","payment_verified","status","marketplace_url"]}