Back to Browse
extract-forms-as-json-watch
x402
extract-forms-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 2026-10-22).
Monitors a web page's HTML forms for changes, returning current form data as JSON plus a diff of what changed since the last check.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for extract forms 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 form fields extracted as JSON, a boolean 'changed' flag indicating whether the forms differ from the previous check, a field-level diff showing before and after values for anything that changed, and a timestamp of when the page was last seen. Previous results are retained for 90 days for comparison.
Example use cases
Track competitor sign-up form changes
“Watch https://competitor.com/signup and alert me whenever the sign-up form changes — I want to see which fields were added or removed compared to last time.”
Monitor government form updates
“Check https://agency.gov/apply for any changes to their application form and tell me what's different from the last time you looked, including what the fields said before.”
Detect checkout form modifications
“Keep monitoring https://shop.example.com/checkout — if the payment or shipping form fields change at all, let me know right away with a before-and-after breakdown.”
Technical details
Endpoint
GEThttps://page.intel.rallylive.ca/watch/page/forms/json?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to detect changes to HTML forms on a specific web page over time, especially when you want a structured before/after diff of form fields. It is ideal for scheduled monitoring workflows where you want to be alerted only when something actually changes, rather than re-extracting all form data manually on every poll. Prefer it over a plain form-extraction endpoint when change detection and diffing are the primary goal.
Side effects
- URL is unreachable or returns non-200 — no form data extracted
- Page has no HTML forms — empty result with changed=false
- First call for a URL has no prior snapshot to compare — changed flag may be null or baseline
- JavaScript-rendered forms may not be captured if page requires JS execution
- 90-day retention exceeded — prior snapshot no longer available for comparison
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"