{"uid":"cap_fRYgD5pYSnibrbZ195UgA","slug":"sitecheck-ssl-certificate-transparency-lookup-5d83d771","name":"SiteCheck SSL Certificate Transparency Lookup","description":"Recent TLS certificates logged for a domain (Certificate Transparency via Cert Spotter's public index): issuer, validity dates, names on the certificate, and any name outside the domain. Shows the 10 newest; does not check revocation or the live server's certificate chain.","url":"https://api.fadeandco.workers.dev/api/agent-intel/ssl-certificate-transparency?utm_source=zero.xyz","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":["domain"],"properties":{"domain":{"type":"string","description":"Domain such as example.org (a URL is reduced to its host)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"note":"Shows names logged for the domain (including subdomains). Names outside the domain are a lead to check, not proof of a rogue certificate. Revocation is not checked.","count":9,"domain":"example.org","source":"https://api.certspotter.com/v1/issuances","flagged":3,"checkedAt":"2026-10-23T09:35:21.132Z","certificates":[{"id":"12809115180","names":["example.com","example.edu"],"issuer":"Sectigo","expired":false,"notAfter":"2026-11-20T23:59:59Z","notBefore":"2025-11-20T00:00:00Z","revokedInLog":true,"namesOutsideDomain":["example.com","example.edu"]},{"id":"12822827438","names":["example.com","example.edu"],"issuer":"Sectigo","expired":false,"notAfter":"2026-11-21T23:59:59Z","notBefore":"2025-11-21T00:00:00Z","revokedInLog":false,"namesOutsideDomain":["example.com","example.edu"]}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tVL3aKaZ3AcxF_yVlA7wW","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the 10 most recent TLS certificates logged for a domain via Certificate Transparency (Cert Spotter), including issuer, validity dates, covered names, and any names outside the queried domain.","exampleAgentPrompt":"Can you pull the recent Certificate Transparency log entries for stripe.com and tell me if any certificates were issued covering names outside that domain?","exampleUseCases":[{"title":"Security audit for a company domain","prompt":"Check the certificate transparency logs for acmecorp.com — I want to see who has issued TLS certificates for it recently and whether any of those certs cover domain names outside acmecorp.com."},{"title":"Detecting rogue certificate issuance","prompt":"Has anyone issued an SSL certificate for mybankingsite.com that covers unexpected domains? Pull the CT log history and flag anything that looks suspicious."},{"title":"Pre-launch domain certificate review","prompt":"We're about to launch newproduct.io — can you check what TLS certificates have already been logged for that domain in the certificate transparency index so I know if someone else has been issuing certs for it?"}],"resultDescription":"A JSON object containing the queried domain, a timestamp, the count of certificates found, a count of flagged entries, the source URL (Cert Spotter API), a note about scope limitations, and an array of up to 10 certificate records each with: certificate ID, issuer name, notBefore/notAfter validity dates, array of covered DNS names, expiry boolean, revoked-in-log boolean, and an array of names that fall outside the queried domain.","failureModes":["Missing or invalid domain parameter returns an error","Domain with no CT log entries returns count:0 and empty certificates array","Malformed domain (e.g. full URL passed) is reduced to host — may behave unexpectedly if reduction fails","Cert Spotter API upstream unavailability causes failure","Revocation status is not live-checked — revokedInLog may be stale or incomplete","Only 10 most recent certificates are returned — older issuances are not visible"],"whenToPreferThis":"Use this endpoint when you need a quick, structured view of recent Certificate Transparency log entries for a specific domain — particularly for security investigations, detecting unauthorized or anomalous certificate issuances, or auditing which CAs have issued certs for a domain. Prefer this over manual CT log searches when you need machine-readable output with pre-flagged out-of-domain names. Note: it does not check the live server's certificate chain or perform real-time revocation checks (OCSP/CRL).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T00:33:29.500Z","isFirstParty":false,"canonicalSlug":"sitecheck-ssl-certificate-transparency-lookup-5d83d771"}