OAuth2 Server

This plugin provides an OAuth2 server so that a user can use its Moodle account to log in to external applications.
OAuth2 Server Plugin for Moodle
This plugin enables your Moodle site to act as an OAuth2 authorization server ( OAuth2 ), allowing external applications to authenticate users using their Moodle credentials.
It supports the OAuth2 Authorization Code flow, making it useful for integrating Moodle-based identity verification into custom systems such as applications, portals, custom AI agents, or third-party services. Note that while it allows credential delegation, it is not a full Single Sign-On (SSO) solution by default.
Key Features:
Acts as a compliant OAuth2 Authorization Server.
Supports the Authorization Code Grant flow.
Allows external systems to obtain access tokens and refresh tokens using Moodle credentials.
Built using bshaffer/oauth2-server-php as the underlying OAuth2 library.