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FetchDelta Page Watch 30-Day
x402
FetchDelta Page Watch 30-Day is a paid API for AI agents from fetchdelta.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-14).
Creates a prepaid 30-day daily watch on up to five public URLs, notifying when page content changes, with payment via Base USDC over x402.
Price / call$0.5
Success—
StatusUnknown
How this service works
Public page data and prepaid daily watches for AI agents. Pay per result with Base USDC over x402.
Output
Returns a watch object with a unique watch ID, a status URL to poll for future change reports, a one-time Bearer access token for subsequent status requests, the 30-day cadence details, and an initial check summary showing how many of the submitted URLs were successfully checked, changed, or failed.
Example use cases
Competitor pricing page tracker
“Watch https://acme.com/pricing every day for the next 30 days and let me know if anything changes — I want to catch any price adjustments they make.”
Dependency release notes monitor
“Set up a daily watch on https://github.com/openai/openai-node/blob/main/CHANGELOG.md for 30 days so I know the moment a new version is released.”
Regulatory policy change alerter
“Monitor https://platform.openai.com/docs/usage-policies daily for 30 days and notify me if the policy wording changes at any point.”
Technical details
Endpoint
GEThttps://fetchdelta.com/api/page-watch-30dWhen to prefer
Choose this endpoint when you need prepaid, scheduled daily monitoring of up to five public pages over a 30-day window and want to pay per result in USDC via x402 without managing recurring billing. Prefer it over one-shot fetch or diff endpoints when you need persistent, autonomous change detection rather than a single snapshot or comparison. It is ideal for agents that must surface breaking changes in docs, changelogs, pricing, or policy pages without polling themselves.
Side effects
- Invalid or non-public URL (localhost, credentialed, or non-HTTP(S) URLs rejected)
- More than five URLs supplied in a single request
- Payment failure or insufficient USDC balance over x402
- URL is inaccessible or returns non-200 at initial check (reflected in failedUrls count)
- Malformed request missing required 'url' query parameter
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"watch": {
"id": "00000000-0000-4000-8000-000000000000",
"cadence": "daily",
"statusUrl": "https://fetchdelta.com/api/page-watch-30d/00000000-0000-4000-8000-000000000000",
"durationDays": 30
},
"access": {
"token": "returned-once-after-payment",
"scheme": "Bearer"
},
"product": "page-watch-30d",
"initialCheck": {
"failedUrls": 0,
"changedUrls": 0,
"checkedUrls": 1
}
}
}Tags
x402
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