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certificate-history-watch
x402
certificate-history-watch is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Monitors certificate transparency log history for a domain and detects changes between polling intervals, returning a diff of what changed.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for certificate history: runs the check and compares it with the result from your previous call for the same domain (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when certificate issuance history from certificate-transparency logs changes. $0.01 per check.
Output
Returns the current certificate history result, a boolean 'changed' flag indicating whether anything differs from the previous call, a field-level diff listing exactly which fields changed with before and after values, and a timestamp of when the data was last seen. Results are retained for 90 days per domain.
Example use cases
Rogue certificate issuance alert
“Watch the certificate transparency logs for mybrand.com and alert me immediately if any new certificates are issued that I didn't authorize — show me exactly what changed and when.”
Security audit certificate tracking
“I'm doing a security audit. Start monitoring certificate history for acmecorp.com on a regular schedule and give me a before-and-after diff every time something changes in the CT logs.”
Domain takeover detection
“Set up ongoing monitoring for the certificate transparency history of our acquired domain oldstartup.io — I want to know the moment any new cert issuance appears so we can catch unauthorized activity early.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/watch/monitor/cert-historyWhen to prefer
Choose this endpoint when you need scheduled, diff-aware monitoring of certificate transparency logs for a specific domain — it handles state management automatically (storing the previous result for 90 days) and returns a structured field-level diff, saving you from storing and comparing snapshots yourself. Prefer it over a raw CT log query when you want change detection built in rather than having to implement your own comparison logic.
Side effects
- Domain not specified or invalid — no result returned
- No prior snapshot exists (first call) — changed flag may be false or undefined, no diff available
- Network or CT log fetch failure — may return error or stale data
- Result retention window expired (>90 days since last call) — treated as first call with no baseline
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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