{"uid":"cap_VgkUR5DiG_M7A9NbK886R","slug":"openapi-preflight-validator-4fdd5912","name":"OpenAPI Preflight Validator","description":"Machine-payable service intelligence for discovering, verifying, and monitoring identity, risk, authorization, execution-preflight, and evidence APIs before autonomous agents spend.","url":"https://base-agent-preflight.bytoken2023.workers.dev/v1/x402/web/openapi-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","pattern":"^https?://","maxLength":2048,"description":"Public OpenAPI JSON or YAML document URL."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"network":{"type":"string"},"product":{"type":"string"},"activity":{"type":"object"},"identity":{"type":"object"},"assessment":{"type":"object"},"provenance":{"type":"object"}}}}}}},"responseSchema":{"type":"json","example":{"network":"eip155:8453","product":"openapi-spec-preflight","assessment":{"flags":[],"risk_level":"low","risk_score":0}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2WrW_GDmHCuTuf8jE57r2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates a public OpenAPI JSON or YAML document for server URLs, authentication declarations, operation coverage, and content fingerprint.","exampleAgentPrompt":"Can you run a preflight check on this OpenAPI spec at https://petstore3.swagger.io/api/v3/openapi.json — I want to know if the server URLs, auth declarations, and operation coverage all look valid before I start integrating it.","exampleUseCases":null,"resultDescription":"Returns a structured assessment including network and product identity, activity summary, authentication declarations found, operation coverage metrics, content fingerprint, and an overall provenance report for the OpenAPI document.","failureModes":["URL not reachable or returns non-200 — document fetch failure","URL does not point to valid JSON or YAML — parse error","OpenAPI document missing required fields (info, paths) — schema validation failure","Server URL in the spec is unreachable — server URL check failure","Authentication scheme declared but malformed — auth declaration warning","Request missing required `url` query parameter — 400 bad request"],"whenToPreferThis":"Use this endpoint when you need to validate a public OpenAPI document before integrating with an API — particularly when you care about server URL reachability, authentication scheme correctness, operation coverage completeness, and content fingerprinting. Prefer it over generic HTTP validators when you need OpenAPI-specific structural checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:48:53.538Z","isFirstParty":false}