--- title: "Backend APIs" manual: "TYPO3 Explained" version: "12.4" permalink: "https://docs.typo3.org/permalink/t3coreapi:backend@12.4" source: "ApiOverview/Backend/Index.rst" rendered: "2026-10-21T15:29:37+00:00" --- > [!WARNING] > **Attention** > > TYPO3 v12 has reached end-of-life as of April 30th 2026 and > is no longer being maintained. Use the version switcher on the top > left of this page to select documentation for a supported version of TYPO3. > > Need more time before upgrading? > You can purchase Extended Long Term Support (ELTS) for TYPO3 v12 here: > [TYPO3 ELTS](https://typo3.com/services/extended-support-elts). # Backend APIs {#backend} The following APIs are of interest if you want to configure or extend the functionalities of the backend. **Contents:** - [Access control](https://docs.typo3.org/permalink/t3coreapi:access-control-in-the-backend-users-and-groups@12.4) - [Users and groups](https://docs.typo3.org/permalink/t3coreapi:users-and-groups@12.4) - [Password reset functionality](https://docs.typo3.org/permalink/t3coreapi:password-reset-functionality@12.4) - [Roles](https://docs.typo3.org/permalink/t3coreapi:roles@12.4) - [Options](https://docs.typo3.org/permalink/t3coreapi:access-control-options@12.4) - [Other Options](https://docs.typo3.org/permalink/t3coreapi:other-options@12.4) - [File mounts](https://docs.typo3.org/permalink/t3coreapi:more-about-file-mounts@12.4) - [Backend users module](https://docs.typo3.org/permalink/t3coreapi:backend-users-module@12.4) - [Backend modules API](https://docs.typo3.org/permalink/t3coreapi:backend-modules-api-1@12.4) - [Modules.php](https://docs.typo3.org/permalink/t3coreapi:modules-php-backend-module-configuration@12.4) - [3rd level](https://docs.typo3.org/permalink/t3coreapi:third-level-modules-module-functions@12.4) - [Toplevel](https://docs.typo3.org/permalink/t3coreapi:toplevel-modules@12.4) - [Backend GUI](https://docs.typo3.org/permalink/t3coreapi:backend-gui-1@12.4) - [DocHeaderComponent](https://docs.typo3.org/permalink/t3coreapi:docheadercomponent@12.4) - [ModuleData](https://docs.typo3.org/permalink/t3coreapi:module-data-object@12.4) - [ModuleInterface](https://docs.typo3.org/permalink/t3coreapi:moduleinterface@12.4) - [ModuleProvider](https://docs.typo3.org/permalink/t3coreapi:moduleprovider@12.4) - [ModuleTemplate](https://docs.typo3.org/permalink/t3coreapi:moduletemplate@12.4) - [ModuleTemplateFactory](https://docs.typo3.org/permalink/t3coreapi:moduletemplatefactory@12.4) - [TypoScript](https://docs.typo3.org/permalink/t3coreapi:typoscript-configuration-of-modules@12.4) - [Sudo mode](https://docs.typo3.org/permalink/t3coreapi:sudo-mode-in-typo3-backend-modules@12.4) - [JavaScript](https://docs.typo3.org/permalink/t3coreapi:javascript-in-typo3-backend@12.4) - [ES6 in the TYPO3 Backend](https://docs.typo3.org/permalink/t3coreapi:es6-in-the-typo3-backend@12.4) - [RequireJS (Deprecated)](https://docs.typo3.org/permalink/t3coreapi:requirejs-deprecated@12.4) - [Use RequireJS in your own extension](https://docs.typo3.org/permalink/t3coreapi:use-requirejs-in-your-own-extension@12.4) - [Dependency handling](https://docs.typo3.org/permalink/t3coreapi:dependency-handling@12.4) - [Loading your own or other RequireJS modules](https://docs.typo3.org/permalink/t3coreapi:loading-your-own-or-other-requirejs-modules@12.4) - [Shim Library to Use it as Own RequireJS Modules](https://docs.typo3.org/permalink/t3coreapi:shim-library-to-use-it-as-own-requirejs-modules@12.4) - [Client-side templating](https://docs.typo3.org/permalink/t3coreapi:client-side-templating@12.4) - [Various JavaScript modules](https://docs.typo3.org/permalink/t3coreapi:various-javascript-modules@12.4) - [Modals](https://docs.typo3.org/permalink/t3coreapi:modals@12.4) - [Multi-step wizard](https://docs.typo3.org/permalink/t3coreapi:multi-step-wizard@12.4) - [DocumentService (jQuery.ready substitute)](https://docs.typo3.org/permalink/t3coreapi:documentservice-jquery-ready-substitute@12.4) - [SessionStorage wrapper](https://docs.typo3.org/permalink/t3coreapi:sessionstorage-wrapper@12.4) - [Ajax request](https://docs.typo3.org/permalink/t3coreapi:ajax-request-1@12.4) - [Event API](https://docs.typo3.org/permalink/t3coreapi:event-api@12.4) - [Navigation via JavaScript](https://docs.typo3.org/permalink/t3coreapi:navigation-via-javascript@12.4) - [JavaScript form helpers](https://docs.typo3.org/permalink/t3coreapi:javascript-form-helpers-1@12.4) - [Ajax](https://docs.typo3.org/permalink/t3coreapi:ajax-in-the-backend@12.4) - [Backend layout](https://docs.typo3.org/permalink/t3coreapi:backend-layout@12.4) - [Backend routing](https://docs.typo3.org/permalink/t3coreapi:backend-routing-1@12.4) - [Backend user object](https://docs.typo3.org/permalink/t3coreapi:backend-user-object@12.4) - [Broadcast channels](https://docs.typo3.org/permalink/t3coreapi:broadcast-channels@12.4) - [Button components](https://docs.typo3.org/permalink/t3coreapi:button-components-1@12.4) - [Clipboard](https://docs.typo3.org/permalink/t3coreapi:clipboard@12.4) - [Context menus](https://docs.typo3.org/permalink/t3coreapi:context-sensitive-menus@12.4) - [Custom Permissions](https://docs.typo3.org/permalink/t3coreapi:using-custom-permission-options@12.4) - [LoginProvider](https://docs.typo3.org/permalink/t3coreapi:backend-login-form-api@12.4) - [UriBuilder](https://docs.typo3.org/permalink/t3coreapi:use-the-backend-uribuilder-to-link-to-edit-records@12.4)