{"uid":"cap_C6qAlDxzBom1oPru0Ut0_","slug":"agentics-x402-preflight-vetting-service-32264f40","name":"Agentics x402 Preflight Vetting Service","description":"Correctness-critical services for autonomous AI agents","url":"https://x402rail.net/v1/preflight","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","format":"uri","description":"Absolute http(s) URL of the x402 service (or one of its endpoints) to vet (query parameter). Private/loopback addresses are rejected. We derive the origin to fetch /.well-known/x402 and probe health."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"url":"https://api.example.com/v1/quote","health":{"ok":true,"url":"https://api.example.com/v1/health/simple","latencyMs":142,"httpStatus":200},"origin":"https://api.example.com","manifest":{"payTo":"0xabc…","scheme":"exact","networks":["base"],"provider":"Example","paymentEnv":"mainnet","receiveOnly":true,"advertisedSchemes":["exact"]},"checkedAt":"2026-06-18T12:00:00.000Z","serviceId":"api-example-com","assessment":{"notes":[],"reachable":true,"selfDescribes":true,"hasReliabilityScore":true},"reputation":{"score":88.5,"serviceId":"api-example-com","sampleSize":60}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_J6q0-BPM_V2b30XFmax6D","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Vets an x402-enabled API endpoint for reachability, self-description, health, and reputation before an AI agent commits payment","exampleAgentPrompt":"Before my agent pays to call https://api.someservice.com/v1/data, can you run a preflight check on it — I want to know if it's reachable, properly self-describes its x402 manifest, and what its reputation score looks like?","exampleUseCases":null,"resultDescription":"Returns a structured assessment including: the service's health check URL and latency, whether it's reachable, whether it self-describes via /.well-known/x402, the manifest details (payment address, supported networks, scheme), a reputation score out of 100 with sample size, and a checkedAt timestamp — everything needed to decide whether to trust and pay the endpoint.","failureModes":["Private or loopback URL provided — rejected with error before probing","Target service is unreachable — health.ok=false, reachable=false in assessment","Service does not expose /.well-known/x402 — selfDescribes=false in assessment","Malformed or non-URI input URL — schema validation error","Target service returns non-200 health status — httpStatus reflects actual code","No reputation data available — score or sampleSize may be null or zero"],"whenToPreferThis":"Use this endpoint when your AI agent is about to make a paid x402 API call and needs to verify the target service is legitimate, healthy, and reputable before committing USDC. It is the canonical pre-payment trust check for the x402 ecosystem — prefer it over blind calling whenever financial risk or correctness is at stake.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:35:37.875Z","isFirstParty":false}