Wayback Machine Availability API
by archive.org
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Added on October 31st, 2026
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What it does
The Wayback Machine Availability API from the Internet Archive tells you whether a URL has been archived and returns the snapshot closest to a date you choose. Useful for showing archived versions of dead links, or for checking how a page looked in the past. Responses are JSON. Free, no key needed; the CDX API offers a full list of snapshots.
More information: https://archive.org/help/wayback_api.php
