openpolitics.com

Wayback Availability JSON API

The API can be used as follows:

<a href="http://archive.org/wayback/available?url=example.com">http://archive.org/wayback/available?url=example.com</a>

which might return:

{
    "archived_snapshots": {
        "closest": {
            "available": true,
            "url": "http://web.archive.org/web/20130919044612/http://example.com/",
            "timestamp": "20130919044612",
            "status": "200"
        }
    }
}