This document provides information on how to build a Maximizer API that allows editing an address book entry. It involves creating an ASPX project with HTML and ASPX files to display the UI. JavaScript files are used to generate tokens and call the Maximizer API methods. The process includes generating a token, declaring JavaScript files, creating a text box and buttons in the ASPX file to change the entry name. On click, the JavaScript makes an API call with the token to update the address book entry name. The files are then placed in the correct Maximizer folders and tested on the server.