{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_v2r8bx5vegjn","handle":"x402check-x402check","url":"https://wellknown.network/agents/x402check-x402check","links":{"self":"https://wellknown.network/agents/x402check-x402check/record.json","html":"https://wellknown.network/agents/x402check-x402check","markdown":"https://wellknown.network/agents/x402check-x402check/record.md","api":"https://wellknown.network/api/v1/agents/x402check-x402check","status":"https://wellknown.network/api/v1/agents/x402check-x402check/status","claim":"https://wellknown.network/agents/x402check-x402check/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/x402check-x402check/claim.json","badge":"https://wellknown.network/agents/x402check-x402check/badge.svg","openapi":"https://wellknown.network/openapi.json","history":"https://wellknown.network/api/v1/agents/x402check-x402check/history","tools":"https://wellknown.network/api/v1/agents/x402check-x402check/tools"},"ard":{"identifier":"urn:air:x402check.dev:agent:x402check-x402check","type":"application/a2a-agent-card+json"},"kind":"agent","declared":{"name":"x402check","summary":"Call before paying any x402 tool. Trust-check the seller URL: is it reachable, is the 402 legit, what payTo/price does it demand, and has payTo or price drifted. Returns ok|caution|avoid + that tool's history only. Budget guard and compare helpers for agents. Paid per URL. Not a wallet OFAC/drainer…","description":"Call before paying any x402 tool. Trust-check the seller URL: is it reachable, is the 402 legit, what payTo/price does it demand, and has payTo or price drifted. Returns ok|caution|avoid + that tool's history only. Budget guard and compare helpers for agents. Paid per URL. Not a wallet OFAC/drainer scanner.","publisher":{"name":"x402check","url":"https://x402check.dev"},"homepage":"https://x402check.dev/docs","repository":null,"version":"0.2.2","license":null,"protocols":["a2a"],"tags":["x402","trust","preflight","safety","payto","verify","uptime","scam-check","budget-guard","wallet","base","usdc","batch","compare","cheapest","reliable"],"pricing":null,"endpoints":[{"url":"https://x402check.dev/preflight","type":"a2a","auth":"apikey","probeable":true}],"skills":[{"id":"preflight_one","name":"Preflight one x402 tool","tags":["x402","trust","preflight","safety","payto","verify","uptime","scam-check","budget-guard"],"description":"Trust-check one absolute https x402 seller URL before you pay it. Use for: is this endpoint safe/legit; verify payTo; detect price or wallet drift; check uptime; validate 402 payment requirements; budget guard before signing USDC on Base; debug a failing 402."},{"id":"verify_payto","name":"Verify x402 payTo","tags":["x402","payto","verify","wallet","base","usdc"],"description":"Extract and verify the receiving wallet (payTo) from a seller's live 402 challenge, with history of wallet rotations. Use before signing a USDC transfer."},{"id":"preflight_batch","name":"Compare / batch preflight x402 tools","tags":["x402","trust","batch","compare","cheapest","reliable"],"description":"Trust-check up to 25 seller URLs in one request. Charged per URL (N × unit) in a single Exact settlement. Use when comparing candidates, picking cheapest/most reliable, or screening Bazaar hits before paying."}],"tools":["Preflight one x402 tool","Verify x402 payTo","Compare / batch preflight x402 tools"],"extra":{"inputModes":["application/json","text/plain"],"outputModes":["application/json"],"capabilities":{"streaming":false,"pushNotifications":false,"stateTransitionHistory":false},"protocolVersion":"0.3.0"},"attribution":{"kind":"a2a_card","name":"a2a_card","summary":"a2a_card","version":"a2a_card","description":"a2a_card","homepageUrl":"a2a_card","publisherUrl":"a2a_card","publisherName":"a2a_card"}},"derived":{"capabilities":[{"slug":"commerce.payments","name":"Payments","confidence":1,"provenance":"declared"},{"slug":"dev.monitoring","name":"Monitoring & Observability","confidence":1,"provenance":"declared"}],"categories":["commerce","dev"],"language":"en"},"observed":{"status":"live","statusReason":"Responded 5h ago.","lastOkAt":"2026-11-05T20:27:52.326Z","lastProbedAt":"2026-11-05T20:27:52.326Z","statusComputedAt":"2026-11-05T20:30:25.985Z","reliability30d":{"probes":13,"successRate":1,"p50Ms":48,"basis":"service","measures":{"availability":"availability","latency":"response time","tools":"tool surface observed","summary":"Checks reached the service itself."},"checks":{"total":13,"ok":13,"authBoundaryOk":0,"serviceOk":13,"note":"Counted from the observation rows for the window, checks of the server only (HTTP, A2A card, MCP initialize). ok = authBoundaryOk + serviceOk. `probes` is the sum of daily rollups and includes registry checks, so it can differ from `total`."}},"latestObservations":[{"at":"2026-11-05T20:27:52.326Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":393,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-05T12:23:56.492Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":33,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-05T04:24:34.588Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":214,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-04T20:28:48.238Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":47,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-04T12:23:18.183Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":45,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-04T04:29:06.577Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":336,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-03T20:31:25.803Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":38,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-03T12:29:41.242Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":48,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-03T04:27:13.657Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":49,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}},{"at":"2026-11-02T20:29:05.038Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":388,"error":null,"detail":{"name":"x402check","signed":false,"version":"0.3.0","cardPath":"/.well-known/agent-card.json","skillCount":3,"protocolVersion":"0.3.0"}}],"tools":null,"package":null,"toolSurface":null,"endpointFacts":[{"id":"ep_6cwqvstdw2k3","url":"https://x402check.dev/preflight","type":"a2a","factsCheckedAt":"2026-11-03T12:29:41.225Z","auth":null,"tls":{"observedAt":"2026-11-03T12:29:41.266Z","protocol":"TLSv1.3","chainValid":true,"chainError":null,"hostMatches":true,"subject":"x402check.dev","issuer":{"commonName":"WE1","organization":"Google Trust Services"},"validFrom":"2026-10-31T16:49:59.000Z","validTo":"2027-01-29T17:49:56.000Z","daysToExpiry":84,"sanCount":2,"fingerprint256":"8C:EF:30:06:C1:72:14:0D:D6:55:86:7A:96:61:DC:C1:FC:99:27:DE:AE:AD:EB:EC:A4:1A:0A:20:F7:93:5E:92"}}]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"a2a_card","key":"https://x402check.dev/.well-known/agent-card.json","url":"https://x402check.dev/.well-known/agent-card.json","firstSeenAt":"2026-11-01T16:22:25.230Z","fetchedAt":"2026-11-01T16:22:25.230Z","normalizedAt":"2026-11-01T16:22:25.230Z"}]},"firstSeenAt":"2026-11-01T16:22:25.230Z","updatedAt":"2026-11-01T16:23:32.249Z"}