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certificate-history
x402
certificate-history is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Retrieves full certificate-transparency log history for a domain, grouped by issuer with first/last issuance dates, valid-cert counts, and the 20 most recent certificate entries.
Price / call$0.01
Success—
StatusUnknown
How this service works
Certificate issuance history from certificate-transparency logs: every certificate ever logged for the domain (up to 200), grouped by issuer with first/last issuance dates, current-valid count, and the most recent 20 entries (issuer, common name, not-before/not-after). Spot rogue issuers, renewal cadence and CA changes. $0.01 per domain.
Output
Returns up to 200 historical certificate entries for the domain, grouped by issuer with first/last issuance timestamps and a count of currently valid certificates, plus the 20 most recent entries showing issuer, common name, and not-before/not-after validity dates.
Example use cases
Detect rogue certificate issuers
“Check the certificate history for mybankingapp.com and tell me if any unexpected or unauthorized certificate authorities have ever issued a cert for that domain — I want to spot any potential mis-issuance.”
Audit CA changes before migration
“I'm migrating our TLS setup for acmecorp.com to a new CA — can you pull the full certificate issuance history so I can see which CAs we've used historically and when we switched between them?”
Monitor renewal cadence for compliance
“What's the certificate renewal cadence for api.myservice.io? Pull its cert-transparency history and show me how frequently certs have been issued and whether any are currently valid.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/monitor/cert-historyWhen to prefer
Choose this endpoint when you need historical certificate issuance intelligence across all CAs for a domain — especially for security audits, detecting rogue issuers, analyzing renewal patterns, or tracking CA changes over time. Prefer this over a simple SSL expiry check (which only shows the current cert) when historical breadth and issuer diversity matter. Ideal for threat-hunting, compliance audits, and domain monitoring workflows.
Side effects
- Domain not found or no CT log entries exist — returns empty result set
- Invalid or malformed domain input — returns validation error
- CT log query timeout — may return partial results
- No currently valid certificates — current-valid count returns zero
- Rate limiting or payment failure — returns 402 or 429 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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