One of the hidden gems in our software is the Infusionsoft API. The Infusionsoft API enables third-party applications to communicate with Infusionsoft and process incoming data for a wide variety of uses. APIs are implemented from the documentation or the “schema” of the API so developers can code their system to work with our system. Simply put, APIs are like translators that interact with the outside world, yet maintain the integrity of all the data and security within your application. Application Programming Interfaces are known as “APIs” for short. People tend to use APIs to allow an application talk to another application for transferring data.
The Infusionsoft API uses XML-RPC as it's communication method. For your convenience, we have also developed a PHP-SDK that contains all of the functions available thru the API.