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Wayback Machine CDX Snapshot Lister
x402
Wayback Machine CDX Snapshot Lister is a paid API for AI agents from vaaya.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Lists archived snapshots of a URL from the Internet Archive Wayback Machine CDX index, returning timestamp and metadata rows for historical page retrieval.
Price / call$0.01
Success—
StatusUnknown
How this service works
List archived snapshots of a URL from the Internet Archive Wayback Machine (CDX index). Pass `url` + optional `from`/`to` (YYYY..YYYYMMDDhhmmss prefixes) and `limit`. Returns [timestamp, original, mimetype, statuscode, ...] rows — feed a row's timestamp to wayback/fetch. THE source for "what did this page/pricing/docs say in <year>" and for recovering dead links.
Output
Returns an array of rows from the CDX index, each containing fields like timestamp (YYYYMMDDhhmmss), original URL, mimetype, HTTP status code, and other metadata. These rows can be used to construct Wayback Machine fetch URLs by passing the timestamp to a companion wayback/fetch endpoint.
Example use cases
Recover deleted documentation page
“The old React docs at reactjs.org/docs/hooks-intro.html seem to have moved or been removed — can you list any Wayback Machine snapshots of that URL from 2021 so I can find an archived version?”
Track competitor pricing history
“I want to see what Notion's pricing page looked like in 2019 and 2020 — can you pull up to 20 Wayback Machine snapshots of notion.so/pricing between January 2019 and December 2020?”
Verify past claims from a news article
“Pull archived snapshots of techcrunch.com/2022/03/14/article-slug from the Wayback Machine around March 2022, limit to 5 results, so I can see if the article was edited after publication.”
Technical details
Endpoint
POSThttps://vaaya.ai/api/run/wayback/snapshotsWhen to prefer
Use this endpoint when you need to discover what archived snapshots exist for a URL before fetching their content — it's the index/discovery step in a two-phase Wayback Machine workflow. Prefer this over direct web scraping when the target page no longer exists, has changed, or you need to verify historical content at a specific point in time. It's the right choice for link recovery, historical price/docs research, and content verification tasks.
Side effects
- URL has no archived snapshots — empty result set returned
- Invalid timestamp format in from/to parameters causes bad request
- Rate limiting or upstream Wayback Machine CDX API unavailability
- Very broad queries with no limit set may time out or return truncated results
- Payment failure or insufficient USDC balance blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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