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Well-Known Scan Change Watch
x402
Well-Known Scan Change 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).
Runs a well-known file scan for a domain and returns whether the result has changed since the previous call, including a field-level diff with before/after values.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for well known scan: 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 well-known file scan changes. $0.01 per check.
Output
Returns the current well-known scan result, a boolean changed field indicating whether it differs from the previous call, a list of exactly which fields changed with their before and after values, and a timestamp of when the result was last seen. Previous results are retained for 90 days.
Example use cases
Security policy change detection
“Set up a check to tell me if the security.txt or any other well-known file on mybusiness.com has changed compared to the last scan — I need to know which fields changed and what the old vs new values were.”
Competitor site monitoring
“Run a well-known scan watch on competitor.com and let me know if anything has changed since the previous result — show me the before and after for any fields that differ.”
Automated compliance audit
“Every week, check if the well-known scan result for myplatform.io has changed at all, and log any field-level differences so I can review what was updated.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/watch/site/well-knownWhen to prefer
Use this endpoint when you need to track changes to a domain's well-known files over time, rather than just retrieving a one-time snapshot. It is ideal for scheduled monitoring pipelines where you want automatic field-level diffs without maintaining your own state, since the service stores the previous result for 90 days. Prefer it over a raw scan endpoint when the key question is 'did anything change?' rather than 'what is the current value?'
Side effects
- Domain not provided or invalid — scan cannot be executed
- No previous result stored (first call for a domain) — changed may be false or indeterminate
- Domain unreachable or well-known endpoint returns non-200 — scan result may be empty or error
- Previous result expired beyond 90-day retention — comparison not possible
- Rate limit or payment failure — request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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