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SiteSignal URL & Webpage Evidence
x402
SiteSignal URL & Webpage Evidence is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).
Captures a bounded, reproducible snapshot of a public webpage's HTTP status, redirects, content hash, and optionally verifies whether specific text is present on the page.
Price / call$0.02
Success—
StatusDown
How this service works
Verify a public webpage with a bounded, reproducible snapshot of website status, redirects, content hash, and optional text-presence evidence for monitoring and research.
Output
Returns a structured snapshot including the final HTTP status code, any redirect hops encountered, a content hash of the page body, and (if expectedText was supplied) a boolean indicating whether that text was found on the page, along with case-sensitivity details.
Example use cases
Legal compliance page verification
“Check if our privacy policy page at https://acme.com/privacy still contains the text 'GDPR compliant' — I need confirmation it's live and that phrase is actually on the page.”
Uptime and content integrity audit
“Can you snapshot https://status.myservice.io right now and tell me the HTTP status code and a content hash so I can compare it against what it looked like last week?”
Redirect correctness check
“Verify that https://old.mybrand.com/sale redirects properly and that the final landing page contains the word 'discount' — I want to make sure the campaign redirect is working.”
Technical details
Endpoint
GEThttps://phases-prot-shine-royal.trycloudflare.com/x402/url-evidenceWhen to prefer
Choose this endpoint when you need a bounded, reproducible, single-shot verification of a public webpage's availability, content integrity, or text presence — especially for monitoring, compliance auditing, or research scenarios where you want a content hash as an immutable reference. It is better than a full crawler when you only need one page and want lightweight, fast evidence without persistent state.
Side effects
- URL is unreachable or returns a network error — endpoint reports connection failure
- Target page requires authentication — returns a non-200 status with no body content
- URL format is invalid — schema validation rejects the request before any fetch
- Page returns non-text content (e.g. binary file) — content hash may be present but text search is inapplicable
- Cloudflare tunnel instability causing intermittent 5xx errors from the proxy layer
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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