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Extract Tel Links as JSON – Change Watch
x402
Extract Tel Links as JSON – Change 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 telephone links (tel: hrefs) for changes, returning current extracted data, a changed flag, before/after diffs, and last-seen timestamp.
Price / call$0.02
Success—
StatusUnknown
How this service works
Change watch for extract tel links 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 a JSON object containing the current extracted telephone links from the target page, a boolean 'changed' field indicating whether the data differs from the previous check, a list of fields that changed with their before and after values, and a timestamp of when the data was last seen. Previous check results are retained for 90 days.
Example use cases
Business phone number change alert
“Watch the contact page at example-clinic.com and alert me if any of the clickable phone numbers change — I need to know the old and new values immediately.”
Competitor contact info monitoring
“Check whether any telephone links on my competitor's homepage have changed since last time I checked, and show me a before/after comparison if they have.”
Automated site audit for tel link changes
“Run a change check on the support page at shop.mystore.com and tell me if any tel: links were added, removed, or updated compared to the previous snapshot.”
Technical details
Endpoint
GEThttps://page.intel.rallylive.ca/watch/page/tel-links/json?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to detect changes specifically in telephone (tel:) link elements on a webpage over time, rather than a one-shot extraction. It is ideal for scheduled monitoring workflows where you want to be alerted when phone contact information is added, removed, or modified, and need a structured before/after diff rather than just the current state.
Side effects
- Target URL unreachable or returns non-200 status — extraction fails with error
- No previous check exists for this URL — 'changed' cannot be computed on first call
- Tel links present in dynamic/JavaScript-rendered content may not be extracted if page is not fully rendered
- Payment of $0.02 USDC not fulfilled — request rejected
- 90-day retention window exceeded — previous snapshot no longer available for comparison
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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