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Web Evidence Capture & SHA-256 Verification
x402
Web Evidence Capture & SHA-256 Verification is a paid API for AI agents from nfsbl-159-89-4-32.free.pinggy.net, paid per call via x402, $0.005/call, status down (last checked 2026-10-14).
Fetches a URL and returns a cryptographic SHA-256 hash of its content along with HTTP metadata, title, links, and byte size as verifiable evidence
Price / call$0.005
Success—
StatusDown
How this service works
Website hosted for free through pinggy.io> <meta name=
Output
Returns the original URL, the final redirected URL (if any), HTTP status code, page title, content size in bytes, a SHA-256 hash of the page content for integrity verification, a sample array of links found on the page, a change detection object for comparing against prior captures, and a payment receipt object.
Example use cases
Legal compliance content snapshot
“I need to capture evidence of what's currently published at https://competitor.com/pricing right now — get me the SHA-256 hash, the page title, and the HTTP status so I have a timestamped proof for our legal team.”
Monitoring webpage for changes
“Check https://gov-agency.org/regulations/2024 and give me the content hash so I can compare it later to detect if anything on that page has been modified.”
Verifying a live URL before archiving
“Before we archive it, can you fetch https://mybrand.com/press-release-jan-2025 and confirm it's returning a 200, grab the content SHA-256 hash, and tell me how many bytes the page is?”
Technical details
Endpoint
POSThttps://nfsbl-159-89-4-32.free.pinggy.net/evidence?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need cryptographic proof (SHA-256) of a webpage's content at a specific moment in time — particularly for legal evidence, compliance auditing, or change detection workflows. It is distinct from full-site crawlers because it captures a single URL with integrity metadata rather than bulk-scraping. Prefer it over generic HTTP fetch tools when you need the content hash, HTTP status, and link sample bundled as a structured, verifiable artifact.
Side effects
- URL is unreachable or returns a non-2xx HTTP status — httpStatus field reflects the error code
- URL redirects to an unexpected or blocked destination — finalUrl may differ from input
- Target site blocks automated fetchers (bot protection) — content may be empty or partial, affecting hash reliability
- Malformed or non-HTTP URL input — request rejected with validation error
- Timeout on slow or unresponsive servers — partial or no content returned
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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