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Extract Footer as JSON – Change Watch
x402
Extract Footer as JSON – Change Watch is a paid API for AI agents from page.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).
Monitors a web page's footer content (as JSON) and returns whether it has changed since the last check, along with before/after field diffs.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for extract footer as json: runs the check, compares it with the result from your previous call for the same url (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.
Output
Returns the current footer content as a JSON object, a boolean 'changed' flag indicating whether it differs from the previous check (stored up to 90 days), a list of fields that changed with their before and after values, and the timestamp of when the footer was last seen.
Example use cases
Legal disclaimer footer monitoring
“Keep an eye on the footer of https://mybank.com for me — run a check right now and tell me if any of the legal disclaimer links or text have changed since the last check, and show me what specifically changed.”
Navigation link change detection
“Check whether the footer navigation on https://acmecorp.com has changed at all — I want to know if any links were added, removed, or renamed compared to the last time it was checked.”
Compliance footer audit
“Run a change-watch check on the footer of https://mystore.com and let me know if the privacy policy or cookie notice links in the footer have been updated, with the before and after values.”
Technical details
Endpoint
GEThttps://page.intel.rallylive.ca/watch/page/footer/json?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to detect whether a web page's footer has changed since a previous check, rather than just extracting the footer once. It is ideal for scheduled monitoring workflows where you want to be alerted on changes, track before/after diffs, and avoid re-processing unchanged content. Prefer this over the plain extract-footer-as-json endpoint when change detection and historical comparison are the goal.
Side effects
- Target URL is unreachable or returns a non-200 status — check fails with an error
- Page has no footer element — returns empty result with changed flag potentially false
- First-time call for a URL has no previous result to compare against — changed field may be indeterminate
- 90-day history window expired — previous snapshot no longer available for comparison
- Payment of $0.02 USDC not processed — request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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