This document discusses using WordPress as a backend for client-side applications. WordPress can function as a model-view-controller framework by handling the database through its API while client-side frameworks like AngularJS manage the views and logic. This allows building single-page applications that make requests to the WordPress API for data instead of loading full page HTML from the server. Benefits include less server load, easier caching, and a more scalable and interactive user experience through AJAX. An example application is discussed that uses WordPress for user authentication and data while employing client-side technologies for video chat, text chat, and user profiles.