The API for our URL shortener has changed. You can now access directly the API from YOURLS (the software we are running for the URL shortener).

The API URL has changed to:

Furthermore you have to authorize with signature token and timestamp that can be requested via email. See YOURLS passwordless API.

Refer to our docs and the official YOURLS documentation. We have changed a few things with the API so you should stick to our docs whenever possible.