1. Log in to your account => Click Tools => Click Developers API
For developers Adsvy.com - Shorten URLs and Earn Money prepared API which returns responses in JSON or TEXT formats.
Currently there is one method which can be used to shorten links on behalf of your account.
All you have to do is to send a GET request with your API token and URL Like the following:
2. if Using the API in PHP
To use the API in your PHP application, you need to send a GET request via file_get_contents or cURL. Please check the below sample examples using file_get_contents
Using JSON Response
Hope can help you