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Playground demo key · api.reefapi.com
post/web-archive/v1/available1 credit

Closest single Wayback snapshot to a given date (or the latest). Fast existence check.

Working example
Parameters

The URL, host, or path to look up in the archive (e.g. 'github.com', 'github.com/torvalds', 'https://example.com/page'). Scheme optional. Use with match=prefix/domain/host to widen.

Target date for the closest snapshot. ISO date or Wayback timestamp prefix. Omitted → the most recent capture.

request preview
curl -X POST https://api.reefapi.com/web-archive/v1/available \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"url":"github.com","timestamp":"20120601"}'

Hit Send to run this endpoint live.