---
title: "OpenID Authentication"
version: "14.0"
source: "Index.rst"
start: true
rendered: "2026-09-25T19:03:18+00:00"
---

# OpenID Authentication {#openid-authentication}

-   *Extension key:* openid
-   *Package name:* friendsoftypo3/openid
-   *Version:* release
-   *Language:* en
-   *Author:* Dmitry Dulepov, Markus Klein & contributors
-   *License:*

    This document is published under the
    [Open Content License](https://www.openhub.net/licenses/opl).

-   *Rendered:* today

---

This extension provides OpenID authentication for the TYPO3
backend, which facilitates SSO across multiple websites.

---

**Table of Contents:**

-   [Introduction](Introduction/Index.html#introduction-1)
-   [Users manual](UsersManual/Index.html#users-manual-1)
-   [Administration](Administration/Index.html#administration-1)
-   [Configuration](Configuration/Index.html#configuration-1)
-   [Troubleshooting](Troubleshooting/Index.html#troubleshooting)