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Web Evidence Capture
x402
Web Evidence Capture is a paid API for AI agents from awlfi-64-118-156-55.run.pinggy-free.link, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-24).
Fetches a URL and returns cryptographic proof of its content including SHA-256 hash, HTTP status, page title, links sample, and change detection metadata
Price / call$0.005
Success—
StatusUnknown
How this service works
Website hosted for free through pinggy.io> <meta name=
Output
Returns the original URL, final redirected URL, HTTP status code, page title, content size in bytes, a SHA-256 hash of the content, a sample of links found on the page, a payment receipt object, and a changeDetection object for comparing against previous snapshots.
Example use cases
Legal content preservation for dispute
“Capture evidence of this webpage right now so I have a tamper-evident record of what it says: https://competitor.com/pricing — I may need this for a legal dispute later.”
Compliance audit trail for policy page
“Snapshot https://vendor.com/privacy-policy and give me the SHA-256 hash and HTTP status so I can add it to our compliance audit log.”
Detect if a monitored page changed
“Fetch https://regulator.gov/guidelines and return the content hash and change detection info — I want to know if anything on that page has been updated since we last checked.”
Technical details
Endpoint
POSThttps://awlfi-64-118-156-55.run.pinggy-free.link/evidence?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a cryptographic proof-of-content for a public URL — especially for compliance audits, legal evidence gathering, change detection workflows, or creating tamper-evident snapshots. Prefer this over a plain HTTP fetch when the SHA-256 hash, HTTP status record, and structured metadata matter more than raw HTML.
Side effects
- URL is unreachable or returns a non-200 status — httpStatus field will reflect the error code
- Target page requires JavaScript rendering — static fetch may not capture dynamic content
- Redirect chains may cause finalUrl to differ from input URL
- Large pages may time out before full content is captured
- Private or authentication-gated URLs will not be accessible
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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