
The API script is located here:
http://fizl.us/api.php
To use it, send a GET request with the following parameters:
Example: http://fizl.us/api.php?url=http%3A%2F%2Fgoogle.com&custom=goog
If successful, the content of the page will contain the new short URL as plain text. If there is any kind of error, the content will begin with "Error:" followed by a description, also in plain text.
This API may be subject to change, but probably not. Feel free to use it in your applications but please do not abuse it.