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SiteSignal URL Evidence
x402
SiteSignal URL Evidence is a paid API for AI agents from supported-rely-thee-portion.trycloudflare.com, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).
Captures a reproducible snapshot of a public webpage's status, redirects, content hash, and optional text-presence verification for monitoring and research purposes.
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 bounded, reproducible snapshot including the HTTP status code, redirect chain (URLs and status semantics), a content hash of the response body, and a boolean result indicating whether the optional expectedText was found on the page. Results are deterministic enough for audit trails and monitoring comparisons.
Example use cases
Third-party disclosure compliance check
“Check if https://partner.example.com/privacy-policy is live and still contains the text 'data retention period is 30 days' — I need a reproducible snapshot for our compliance records.”
Uptime and content integrity monitoring
“Snapshot https://status.myapp.com right now and confirm it returns a 200 and that the word 'operational' appears somewhere on the page — I want to know if anything has changed.”
Redirect destination verification
“Can you verify what happens when you hit https://go.mybrand.com/offer — I want to see the redirect chain and confirm the final page contains the text 'exclusive deal'?”
Technical details
Endpoint
GEThttps://supported-rely-thee-portion.trycloudflare.com/x402/url-evidenceWhen to prefer
Choose this endpoint when you need a verifiable, reproducible record that a specific public URL was live at a point in time — especially when you also need to confirm specific text was present on the page. It is ideal for compliance audits, third-party content monitoring, and lightweight uptime checks where a content hash provides integrity evidence. Prefer it over general web scrapers when the goal is verification rather than data extraction, and over redirect-chain-specific endpoints when you also need content hash and text-presence evidence in a single call.
Side effects
- URL is unreachable or times out — returns error with no snapshot
- Target URL requires authentication — publicly inaccessible content cannot be verified
- Expected text not found — returns false for text presence without error
- URL returns non-200 status — status is reported but content hash may be absent
- Malformed URI input — validation error returned before request is made
- Too many redirects — chain truncated or error returned beyond supported hop limit
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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