{"protocolVersion":"0.3.0","name":"SCVD Evidence Agent","description":"scvd.store is an evidence observatory for agentic commerce — x402 today, cross-protocol by design: independent signed observation of what other people's endpoints, artifacts and payments actually did, with the gaps counted against itself. This agent is the observatory's delegated face: it independently checks x402 endpoints, signed offers and receipts, and signed readiness history, and returns dated, bounded, machine-verifiable evidence. Three read-only tasks, free, no account, no conversation. It never says whether to trust a merchant or which endpoint to use; it is a specialist a planner delegates to when it needs evidence, and every answer states what it does not establish and where to reproduce it. Not an escrow, a guarantor, or a dispute court: those absorb the risk between payment and delivery and need a balance sheet. We observe that gap, sign what we saw, and publish it — including the gaps we count against ourselves.","author":"Record Creative Co. LLC","wellKnownURI":"https://scvd.store/.well-known/agent-card.json","url":"https://scvd.store/a2a","version":"1.1.0","provider":{"organization":"Record Creative Co. LLC","url":"https://scvd.store/"},"documentationUrl":"https://scvd.store/a2a","iconUrl":null,"supportsAuthenticatedExtendedCard":false,"security":[],"securitySchemes":{},"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false,"extensions":null},"defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"skills":[{"id":"preflight_endpoint","name":"x402 endpoint preflight","description":"Preflight an x402 endpoint: one unpaid probe answering whether the URL serves a well-formed x402 v2 challenge a stock client could sign, with every check named and defined defects by name. A shape check at one moment; never an uptime or delivery claim.","tags":["x402","preflight","endpoint","free"],"examples":["{\"task\":\"preflight_endpoint\",\"url\":\"https://example.com/api/paid-answer\"}"],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"verify_receipt","name":"x402 receipt verification","description":"Verify an x402 signed offer or receipt: structure, signature against the issuer's key (supplied or resolved from its did:web), liveness; a verdict with every check named. Establishes the bytes and the key, never settlement or delivery.","tags":["x402","receipt","offer","signature","ed25519","free"],"examples":["{\"task\":\"verify_receipt\",\"receipt\":\"eyJ…\",\"public_key_hex\":\"…optional…\"}"],"inputModes":["application/json"],"outputModes":["application/json"]},{"id":"get_endpoint_readiness","name":"x402 endpoint-readiness dataset","description":"Read what the signed weekly corpus holds about one host: rounds probed of rounds since first sighting, the last signed verdict, the tier with its fraction, the gaps counted against the observer. From the chain, not a live probe; a host never met comes back as never met.","tags":["x402","readiness","corpus","history","free"],"examples":["{\"task\":\"get_endpoint_readiness\",\"host\":\"example.com\"}"],"inputModes":["application/json"],"outputModes":["application/json"]}],"conformance":true,"conformance_errors":null,"homepage":null,"repository":null,"license":null,"pricing":null,"contact":null,"id":"3ec62f32-4e67-4382-8d15-2b6bf689f33a","created_at":"2026-09-18T14:07:08.509551Z","updated_at":"2026-10-13T02:17:07.456176Z","hidden":false,"flag_count":0,"maintainer_notes":"Agent endpoint is reachable and validates its input, but rejected the registry's plain-text probe message as invalid params: it expects structured input (for example a data part). The probe cannot exercise this agent's tasks, so task verification is not shown.","category":"trust-safety","category_secondary":null,"uptime_percentage":100.0,"avg_response_time_ms":1588,"last_health_check":"2026-10-13T02:17:06.946493Z","is_healthy":true,"status_notes":[],"task_conformance":{"category":"INPUT","passed":false,"checked_at":"2026-10-13T01:46:47.170656Z","response_ms":1025}}