---
title: "Backend APIs"
manual: "TYPO3 Explained"
version: "11.5"
permalink: "https://docs.typo3.org/permalink/t3coreapi:backend@11.5"
source: "ApiOverview/Backend/Index.rst"
rendered: "2026-10-21T15:30:00+00:00"
---

> [!WARNING]
> **Attention**
>
> TYPO3 v11 has reached end-of-life as of October 31th 2024 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 v11 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 in the backend (users and groups)](https://docs.typo3.org/permalink/t3coreapi:access-control-in-the-backend-users-and-groups@11.5)
    -   [Users and groups](https://docs.typo3.org/permalink/t3coreapi:users-and-groups@11.5)
    -   [Password reset functionality](https://docs.typo3.org/permalink/t3coreapi:password-reset-functionality@11.5)
    -   [Roles](https://docs.typo3.org/permalink/t3coreapi:roles@11.5)
    -   [Access Control Options](https://docs.typo3.org/permalink/t3coreapi:access-control-options@11.5)
    -   [Other Options](https://docs.typo3.org/permalink/t3coreapi:other-options@11.5)
    -   [More about file mounts](https://docs.typo3.org/permalink/t3coreapi:more-about-file-mounts@11.5)
    -   [Backend users module](https://docs.typo3.org/permalink/t3coreapi:backend-users-module@11.5)
-   [Ajax in the Backend](https://docs.typo3.org/permalink/t3coreapi:ajax-in-the-backend@11.5)
-   [Ajax in the backend, client-side](https://docs.typo3.org/permalink/t3coreapi:ajax-in-the-backend-client-side@11.5)
-   [Backend layout](https://docs.typo3.org/permalink/t3coreapi:backend-layout@11.5)
-   [Backend routing](https://docs.typo3.org/permalink/t3coreapi:backend-routing-1@11.5)
-   [Backend user object](https://docs.typo3.org/permalink/t3coreapi:backend-user-object@11.5)
-   [Broadcast channels](https://docs.typo3.org/permalink/t3coreapi:broadcast-channels@11.5)
-   [Clipboard](https://docs.typo3.org/permalink/t3coreapi:clipboard@11.5)
-   [Context-sensitive menus](https://docs.typo3.org/permalink/t3coreapi:context-sensitive-menus@11.5)
-   [Using Custom Permission Options](https://docs.typo3.org/permalink/t3coreapi:using-custom-permission-options@11.5)
-   [Backend login form API](https://docs.typo3.org/permalink/t3coreapi:backend-login-form-api@11.5)
-   [Links to Edit Records](https://docs.typo3.org/permalink/t3coreapi:links-to-edit-records@11.5)