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extract-headings-as-json-watch
x402
extract-headings-as-json-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 webpage's headings (H1-H6) for changes by comparing the current extraction against a stored baseline and returning a diff with changed/unchanged status.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for extract headings 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 headings extracted from the page as JSON, a boolean 'changed' flag indicating whether the headings differ from the previous check, a list of fields that changed with before/after values, and the timestamp of when the page was last seen. Previous results are retained for 90 days for comparison.
Example use cases
SEO heading structure monitoring
“Check https://competitor.com/pricing for me and tell me if any of their headings have changed since last time — I want to know if they've renamed any sections or added new ones.”
News site headline tracking
“Watch https://techcrunch.com and alert me whenever the headings on the page change — show me what was there before and what it says now.”
Documentation page update detection
“Monitor https://docs.myplatform.com/api-reference and tell me if any of the section headings have been updated since you last checked, so I can catch documentation changes early.”
Technical details
Endpoint
GEThttps://page.intel.rallylive.ca/watch/page/headings/json?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to detect changes in a webpage's heading structure over time rather than just performing a one-time extraction. Ideal for SEO monitoring, competitive intelligence, content update tracking, or any workflow where you want to be alerted when H1-H6 tags are added, removed, or modified. Prefer this over a plain extraction endpoint when you need change detection logic (diff, before/after values) without building your own storage layer.
Side effects
- URL is unreachable or returns non-200 response — extraction fails with an error
- No previous check exists for the URL — baseline not yet established, comparison unavailable
- Page blocks scraping (bot detection, CAPTCHA) — headings cannot be extracted
- Malformed or non-HTML response — no headings found
- 90-day retention window exceeded — baseline expired and comparison unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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