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HTML Lists Extract Change Watch
x402
HTML Lists Extract 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 webpage's bullet and numbered lists for changes, returning current list arrays, a changed flag, field-level diffs with before/after values, and last-seen timestamp.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for html lists extract: 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 bullet and numbered lists from a page as arrays changes. $0.01 per check.
Output
Returns the current extracted HTML lists (bullet and numbered) as arrays, a boolean 'changed' field indicating whether content differs from the previous call, a detailed diff showing exactly which list items changed with before and after values, and a timestamp of when the data was last seen. Results for each URL are retained for 90 days for comparison.
Example use cases
Menu change detection for restaurant
“Watch the ordered list of dishes at https://bestbistro.com/menu and tell me whenever anything is added, removed, or reordered compared to the last time you checked.”
Competitor feature list tracking
“Monitor the bullet-point feature list on https://competitor.com/pricing — alert me to any changes and show me the exact before-and-after for whatever shifted.”
Job listings page watch
“Check the list of open positions on https://company.com/careers regularly and let me know if anything on the bulleted job list has changed since the previous check.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/watch/site/listsWhen to prefer
Choose this endpoint when you need to track whether bullet or numbered HTML list content on a specific webpage has changed over time, with field-level before/after diffs. It is ideal for scheduled agent workflows that need to react to list content changes (e.g. product features, menus, job listings) without storing comparison state themselves. Prefer this over a generic scrape-and-compare approach when you want managed 90-day history and structured change detection built in.
Side effects
- URL is unreachable or returns non-200 status — check may fail or return no list data
- No previous result stored (first call) — 'changed' will be false/null with no diff
- Page has no HTML lists — returns empty arrays with changed false
- 90-day retention window exceeded — baseline is reset and no diff is available
- Rate limiting or payment failure — call does not execute
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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