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page-weight-watch
x402
page-weight-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 weight and resource inventory over time, returning the current result, a changed flag, and field-level before/after diffs compared to the previous check
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for page weight: 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 page weight and resource inventory from the html changes. $0.01 per check.
Output
Returns the current page weight and resource inventory data, a boolean 'changed' flag indicating whether anything differs from the previous call for the same URL (retained up to 90 days), an itemized list of which specific fields changed with before/after values, and a timestamp of when the page was last seen.
Example use cases
Landing page bloat alert
“Check https://mycompany.com/landing for me and let me know if its page weight or any of its resources have changed since the last check — I want to catch any unexpected asset additions or size increases.”
Third-party script inventory watch
“Run a page weight check on https://shop.example.com and compare it to the previous result — I need to see if any new third-party scripts or images were added and how the total weight changed.”
Scheduled performance regression monitor
“Poll https://blog.mybrand.io/home on a schedule and alert me whenever the page weight or resource list changes, showing me the exact before and after values for whatever fields differ.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/watch/site/weightWhen to prefer
Choose this endpoint when you need automated, stateful change detection for page weight and resource inventory specifically — it maintains a 90-day history server-side so you don't need to store snapshots yourself, and it returns structured field-level diffs rather than just a raw snapshot. Ideal for scheduling recurring checks to catch performance regressions, unexpected asset additions, or bloat creep on production pages.
Side effects
- URL is unreachable or returns non-200 status — check may fail or return an error
- First-time call for a URL has no previous snapshot to compare against, so 'changed' will be false or undefined
- Page behind authentication wall may not be accessible
- 90-day retention window exceeded — prior snapshot no longer available for comparison
- Malformed or unsupported URL format rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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