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Web Page Change Diff Detector
x402
Web Page Change Diff Detector is a paid API for AI agents from x240.jvnclk88.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Compares a live webpage to its last stored snapshot and returns the lines that have been added or removed since then
Price / call$0.01
Success—
StatusUnknown
How this service works
Change detection - compares a page to your last snapshot of it and returns the added and removed lines
Output
Returns a structured diff showing the lines added to the page and the lines removed compared to the last stored snapshot of that URL, enabling precise detection of what content changed between the two versions.
Example use cases
Track competitor pricing page updates
“Keep an eye on https://competitor.com/pricing — what lines have been added or removed since the last snapshot?”
Monitor documentation for breaking changes
“Check https://api.stripe.com/docs/changelog against the last snapshot and show me exactly what's been added or removed.”
Detect job listing changes on company careers page
“Has anything changed on https://jobs.netflix.com/jobs since you last checked? Show me what lines are new or gone.”
Technical details
Endpoint
POSThttps://x240.jvnclk88.workers.dev/scrape/diff?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to know specifically what changed on a webpage since a prior check — ideal for monitoring documentation, pricing pages, job boards, news articles, or any content that updates over time. Prefer it over a plain scrape when the goal is change detection rather than full content extraction, and over manual polling when you want a structured diff rather than raw text.
Side effects
- URL is not publicly accessible or returns a non-200 status
- No previous snapshot exists for the URL, so no diff can be computed
- The page uses heavy JavaScript rendering that prevents accurate text capture
- Page content is too large or rate-limited by the target server
- Network timeout when fetching the live page
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public http or https URL to fetch |
Tags
x402
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