{"protocolVersion":"1.0","name":"Agent Verification Utility","description":"A stateless synchronous A2A adapter that validates a prechecked paid intent, creates or reuses a quote bound to its receipt digest and spend policy, and returns exact x402 and MCP purchase instructions as a direct Message. It does not create Tasks or execute paid work without payment.","author":"KG-NINJA","wellKnownURI":"https://agent-economy.kgninja.dev/.well-known/agent-card.json","url":"https://agent-economy.kgninja.dev/a2a","version":"0.4.3","provider":{"organization":"KG-NINJA","url":"https://agent-economy.kgninja.dev/"},"documentationUrl":"https://agent-economy.kgninja.dev/docs/mcp-x402-interoperability","iconUrl":"https://agent-economy.kgninja.dev/icon.svg","supportsAuthenticatedExtendedCard":false,"security":[],"securitySchemes":{},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":null},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"skills":[{"id":"prepare-json-evidence-verification","name":"Prepare JSON evidence verification","description":"Revalidate a bounded request, spend policy, and precheck receipt digest; create or reuse an idempotent bound quote; and return exact x402 purchase instructions. Paid execution remains an explicit later step.","tags":["json","verification","x402","quote"],"examples":["Quote a deterministic check that /status equals ready in supplied JSON."],"inputModes":["application/json"],"outputModes":["application/json"]}],"conformance":true,"conformance_errors":null,"homepage":null,"repository":null,"license":null,"pricing":null,"contact":null,"id":"c1878061-5752-48bf-93a9-ac48d9a3f5c0","created_at":"2026-09-09T11:50:13.119859Z","updated_at":"2026-10-13T00:13:01.459053Z","hidden":false,"flag_count":0,"maintainer_notes":"Smoke test against `message/send` failed with an unrecognised error. See full message in the registry's worker logs.","category":"payments","category_secondary":"trust-safety","uptime_percentage":100.0,"avg_response_time_ms":640,"last_health_check":"2026-10-13T00:13:01.249909Z","is_healthy":true,"status_notes":[],"task_conformance":{"category":"OTHER","passed":false,"checked_at":"2026-10-12T19:03:01.905590Z","response_ms":746}}