# Matrix Authentication Service (Letro Fork)

> **This is a fork of [element-hq/matrix-authentication-service](https://github.com/element-hq/matrix-authentication-service)**  
> Maintained by [Letro Tech GmbH](https://letro.com)

MAS (Matrix Authentication Service) is a user management and authentication service for [Matrix](https://matrix.org/) homeservers. This fork contains modifications and customizations specific to Letro's deployment needs.

For the official upstream documentation, see: [element-hq.github.io/matrix-authentication-service](https://element-hq.github.io/matrix-authentication-service/index.html)

## 📋 About this Fork

This repository is a fork of the upstream Matrix Authentication Service with customizations for Letro's infrastructure. 

**Upstream Repository**: [element-hq/matrix-authentication-service](https://github.com/element-hq/matrix-authentication-service)

## 💬 Community

For general Matrix Authentication Service discussion, join [#matrix-auth:matrix.org](https://matrix.to/#/#matrix-auth:matrix.org)

## 🛠️ Installation

For installation and configuration, refer to:
- **Upstream documentation**: [element-hq.github.io/matrix-authentication-service/setup](https://element-hq.github.io/matrix-authentication-service/setup/)
- Letro-specific deployment documentation (if applicable)

## ⚖️ Copyright & License

Copyright 2021-2024 The Matrix.org Foundation C.I.C.

Copyright 2024, 2025 New Vector Ltd.

Copyright 2025, 2026 Element Creations Ltd.

This software is dual-licensed by Element Creations Ltd (Element). It can be used either:

(1) for free under the terms of the GNU Affero General Public License (as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version); OR

### Original Work
Copyright 2021-2024 The Matrix.org Foundation C.I.C.  
Copyright 2024, 2025 New Vector Ltd.  
Copyright 2025, 2026 Element Creations Ltd.

### Modifications
Copyright 2026 Letro Tech GmbH

This software is based on the Matrix Authentication Service and is licensed under the GNU Affero General Public License version 3 (AGPL-3.0).

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see <https://www.gnu.org/licenses/>