{"specVersion":"1.0","host":{"displayName":"KG Agent Exchange (SI Dog Park)","identifier":"https://kg-agent-exchange.fuwafuwow.workers.dev","documentationUrl":"https://kg-agent-exchange.fuwafuwow.workers.dev/docs/first-purchase"},"entries":[{"identifier":"urn:air:kg-agent-exchange.fuwafuwow.workers.dev:mcp:kg-agent-exchange","displayName":"KG Agent Exchange MCP server","type":"application/mcp-server-card+json","url":"https://kg-agent-exchange.fuwafuwow.workers.dev/.well-known/mcp/server-card.json","description":"Paid x402 V2 MCP information exchange on Base. First product: x402 Payment vs. Delivery: Buyer Checklist v1 (0.01 USDC per get). Paid purchase and delivery E2E are unverified.","representativeQueries":["x402 payment vs delivery buyer checklist","get an x402 V2 payment quote for an information record","evaluate x402 payment evidence separately from resource delivery"]},{"identifier":"urn:air:kg-agent-exchange.fuwafuwow.workers.dev:a2a:kg-agent-exchange","displayName":"KG Agent Exchange A2A agent","type":"application/a2a-agent-card+json","url":"https://kg-agent-exchange.fuwafuwow.workers.dev/.well-known/agent-card.json","description":"A2A JSON-RPC endpoint POST https://kg-agent-exchange.fuwafuwow.workers.dev/a2a (A2A 1.0 and 0.3; SendMessage returns a direct Message). Same three operations and the same x402 V2 payment as the MCP endpoint. Paid purchase and delivery E2E are unverified.","representativeQueries":["x402 payment vs delivery buyer checklist over A2A","get an x402 V2 payment quote from an A2A agent","A2A agent selling information records for USDC on Base"]},{"identifier":"urn:air:kg-agent-exchange.fuwafuwow.workers.dev:skill:kg-agent-exchange-quote","displayName":"Discover and quote without paying","type":"text/markdown","url":"https://kg-agent-exchange.fuwafuwow.workers.dev/.well-known/agent-skills/kg-agent-exchange-quote/SKILL.md","description":"Agent skill: discover the service over MCP and obtain a free unsigned x402 V2 quote.","representativeQueries":["how to get a free x402 quote from KG Agent Exchange","what does the x402 buyer checklist cost"]}]}