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Heading Audit Change Watch
x402
Heading Audit 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).
Monitors a URL's heading (H1) structure audit and reports whether it has changed since the last check, including which fields changed and their before/after values.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for heading audit: runs the check and compares it with the result from your previous call for the same url (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 heading structure audit changes. $0.01 per check.
Output
Returns the current heading audit result for the given URL, a boolean 'changed' flag indicating if it differs from the previous call, a detailed diff showing exactly which fields changed along with their before and after values, and the timestamp of when the result was last seen. The previous result is retained for 90 days.
Example use cases
SEO heading regression detection
“Keep an eye on the H1 heading audit for our homepage at https://mybrand.com and let me know right away if anything in the heading structure changes compared to the last check.”
Post-deploy heading structure verification
“We just pushed a deployment — can you run the heading audit watch on https://shop.example.com and tell me if any heading fields changed from what you saw before the deploy?”
Scheduled heading audit monitoring
“I want to schedule a regular check on the heading structure for https://blog.mysite.com — run the audit watch and report back whether anything is different from the previous scan, and list exactly what changed with the old and new values.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/watch/site/h1-auditWhen to prefer
Choose this endpoint when you need to detect and track changes in a page's heading (H1/heading) audit over time on a schedule, and require a detailed field-level diff between the current and previous audit. Prefer this over a one-shot audit endpoint when you need persistent state comparison, change detection, and structured before/after diffs without maintaining your own audit history.
Side effects
- URL is invalid or unreachable — audit cannot be performed and an error is returned
- No previous result stored (first call) — 'changed' will be false or undefined with no diff available
- URL times out during heading check — partial or no result returned
- Stored previous result has expired (older than 90 days) — treated as a new baseline with no diff
- Payment not processed — request blocked before execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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