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page-preview-card-watch
x402
page-preview-card-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 link preview card (Open Graph/meta) data for changes, returning current values, a changed flag, diff of fields, and last-seen timestamp
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for page preview card: 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 link preview card data changes. $0.01 per check.
Output
Returns the current page preview card data (og:title, og:description, og:image, etc.), a boolean 'changed' flag, a field-level diff showing which properties changed with before/after values, and a timestamp of when the data was last seen. Snapshots are retained for 90 days for comparison.
Example use cases
Track brand page social preview updates
“Watch https://acme.com/about for me and let me know if the Open Graph title, image, or description on their link preview card has changed since the last time you checked.”
Alert on competitor landing page refresh
“Check https://competitor.com/pricing right now — has the link preview card data changed from when you last checked it? Show me exactly which fields changed and what they changed from and to.”
Scheduled product launch metadata monitoring
“Run a check on https://mystore.com/new-product every hour and notify me the moment the page's preview card data — title, description, or thumbnail — changes from what you saw before.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/watch/site/screenshot-metaWhen to prefer
Use this endpoint when you need to detect changes to a specific URL's link preview card (Open Graph/meta) data over time, especially in scheduled or agentic workflows where you want field-level diffs rather than just a raw snapshot. Prefer this over a plain scraper when you care about before/after comparison and change signals, not just the current value.
Side effects
- URL is unreachable or returns non-200 status — error returned, no diff produced
- No previous snapshot exists (first call) — returns current data with changed: false or null baseline
- Snapshot older than 90 days purged — baseline lost, treated as first call
- Rate limit or payment failure — request rejected
- Malformed URL input — validation error returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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