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Web Evidence Capture API
x402
Web Evidence Capture API is a paid API for AI agents from ryfoc-159-89-4-32.free.pinggy.net, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Captures a cryptographic snapshot of a web page at a given URL, returning its content hash, HTTP status, title, and sampled links as verifiable evidence
Price / call$0.005
Success—
StatusUnknown
How this service works
Website hosted for free through pinggy.io> <meta name=
Output
Returns a JSON object containing the original URL, final URL after redirects, HTTP status code, page title, content size in bytes, a SHA256 hash of the page content for tamper detection, a sample of links found on the page, a change detection object for comparing with prior captures, and a payment receipt.
Example use cases
Legal compliance webpage archiving
“I need a verifiable snapshot of https://acme.com/privacy-policy right now — get me the SHA256 hash, HTTP status, and page title so I can use it as evidence that this policy was live today.”
Detecting unauthorized content changes
“Can you capture the current content fingerprint of https://myblog.com/article/123 so I can compare it later and detect if anyone has tampered with or changed the page?”
Third-party vendor website verification
“Please grab evidence for https://vendor.com/sla — I want the content hash, final URL after any redirects, and HTTP status to confirm the SLA page is live and accessible.”
Technical details
Endpoint
POSThttps://ryfoc-159-89-4-32.free.pinggy.net/evidence?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, cryptographically verifiable snapshot of a specific web URL — especially for audit trails, legal evidence, compliance records, or change detection. It is well-suited for single-URL evidence capture with a content hash output rather than full-site crawling or structured data extraction.
Side effects
- URL is unreachable or returns a non-2xx HTTP status — httpStatus field reflects the error code
- URL redirects to an unexpected domain — finalUrl will differ from url input
- Page content is dynamic/JavaScript-rendered and hash may not be stable across calls
- Pinggy tunnel may be offline or rate-limited, returning a 502/503
- Invalid or malformed URL input returns a 400 validation error
- Very large pages may time out or return truncated content affecting hash accuracy
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | http(s) URL to capture evidence for |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| urlrequired | string | |
| bytes | integer | |
| title | string | |
| receipt | object | |
| finalUrl | string | |
| httpStatus | integer | |
| linksSample | array | |
| contentSha256required | string | |
| changeDetection | object |
Tags
x402
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