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Wayback Machine Availability Check
x402
Wayback Machine Availability Check is a paid API for AI agents from wayback-x402.vercel.app, paid per call via x402, $0.002/call, status down (last checked 2026-10-12, last successful call 2026-05-04).
Checks whether a URL has been archived by the Wayback Machine and returns the closest snapshot to a given timestamp
Price / call$0.002
Success100%
StatusDown
How this service works
Wayback Machine availability check. Returns whether a URL has been archived and the closest snapshot to a given timestamp. Use to verify if a page existed at a specific point in time.
Output
Returns a JSON object with: 'available' boolean indicating whether a snapshot exists, 'url' of the queried page, 'snapshot' object with the closest archive metadata, 'wayback_url' pointing to the Wayback Machine page for that URL, and 'requested_timestamp' echoing the input timestamp.
Example use cases
Example prompt
“Can you check if https://oldsite.com was archived by the Wayback Machine around January 15, 2020 — I want to know if a snapshot exists from that time and where to find it.”
Technical details
Endpoint
GEThttps://wayback-x402.vercel.app/wayback/check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify whether a specific URL was archived at or near a particular point in time, especially for fact-checking historical claims, confirming a page existed before it was taken down, or retrieving a snapshot reference. Prefer this over the summary or history endpoints when you only need a single point-in-time availability check rather than a full archive history.
Side effects
- URL not archived — returns available: false with null snapshot
- Invalid timestamp format — query may return latest snapshot instead of targeted one
- Wayback Machine CDX API unavailable — upstream timeout or error
- Missing required 'url' parameter — returns validation error
- Rate limiting or x402 payment failure — returns 402 Payment Required
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://www.wikipedia.org",
"timestamp": "20190601"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"url": "https://www.wikipedia.org",
"snapshot": {
"date": "2019-06-01",
"timestamp": "20190601230855",
"archive_url": "http://web.archive.org/web/20190601230855/https://www.wikipedia.org/",
"status_code": "200"
},
"available": true,
"wayback_url": "http://web.archive.org/web/20190601230855/https://www.wikipedia.org/",
"requested_timestamp": "20190601"
}Tags
x402
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