oauth2-server/index.md

---
layout: default
title: Introduction
---

# Introduction

[![Author](http://img.shields.io/badge/author-@alexbilbie-yellow.svg?style=flat-square)](https://twitter.com/alexbilbie)
[![Source Code](http://img.shields.io/badge/source-thephpleague%2Foauth2--server-blue.svg?style=flat-square)](https://github.com/thephpleague/oauth2-server)
[![Latest Version](http://img.shields.io/packagist/v/league/oauth2-server.svg?style=flat-square)](https://github.com/thephpleague/oauth2-server/releases)
[![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE.md)<br />
[![Build Status](https://img.shields.io/travis/thephpleague/oauth2-server/master.svg?style=flat-square)](https://travis-ci.org/thephpleague/oauth2-server)
[![Coverage Status](https://img.shields.io/scrutinizer/coverage/g/thephpleague/oauth2-server.svg?style=flat-square)](https://scrutinizer-ci.com/g/thephpleague/oauth2-server/code-structure)
[![Quality Score](https://img.shields.io/scrutinizer/g/thephpleague/oauth2-server.svg?style=flat-square)](https://scrutinizer-ci.com/g/thephpleague/oauth2-server)
[![Total Downloads](https://img.shields.io/packagist/dt/league/oauth2-server.svg?style=flat-square)](https://packagist.org/packages/league/oauth2-server)

This library makes working with OAuth 2.0 trivial. You can easily configure an OAuth 2.0 server to protect your API with access tokens, or allow clients to request new access tokens and refresh them.

It supports out of the box the following grants:

* Authorization code grant
* Client credentials grant
* Resource owner password credentials grant
* Refresh grant

You can also define your own grants.

In addition it supports the following token types:

* Bearer tokens
* MAC tokens (coming soon)
* JSON web tokens (coming soon)

## Changelog

The changelog can be viewed here - [https://github.com/thephpleague/oauth2-server/blob/master/CHANGELOG.md](https://github.com/thephpleague/oauth2-server/blob/master/CHANGELOG.md).

The latest release is `4.0.1` (released 2014-11-09):

* Alias the master branch in composer.json (Issue #243)
* Numerous PHP CodeSniffer fixes (Issue #244)
* .travis.yml update (Issue #245)
* The getAccessToken method should return an AccessTokenEntity object instead of a string in ResourceServer.php (#246)

## Questions?

This library was created by Alex Bilbie. Find him on Twitter at [@alexbilbie](https://twitter.com/alexbilbie).
Inital commit 2014-10-01 03:03:42 +05:30			`---`
			`layout: default`
Updated icons 2014-10-01 03:24:54 +05:30			`title: Introduction`
Inital commit 2014-10-01 03:03:42 +05:30			`---`

Updated docs 2014-10-01 03:14:18 +05:30			`# Introduction`

Update index.md 2014-10-06 21:44:19 +05:30			`[![Author](http://img.shields.io/badge/author-@alexbilbie-yellow.svg?style=flat-square)](https://twitter.com/alexbilbie)`
Updated icons 2014-10-01 03:24:54 +05:30			`[![Source Code](http://img.shields.io/badge/source-thephpleague%2Foauth2--server-blue.svg?style=flat-square)](https://github.com/thephpleague/oauth2-server)`
			`[![Latest Version](http://img.shields.io/packagist/v/league/oauth2-server.svg?style=flat-square)](https://github.com/thephpleague/oauth2-server/releases)`
			`[![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE.md)<br />`
			`[![Build Status](https://img.shields.io/travis/thephpleague/oauth2-server/master.svg?style=flat-square)](https://travis-ci.org/thephpleague/oauth2-server)`
			`[![Coverage Status](https://img.shields.io/scrutinizer/coverage/g/thephpleague/oauth2-server.svg?style=flat-square)](https://scrutinizer-ci.com/g/thephpleague/oauth2-server/code-structure)`
			`[![Quality Score](https://img.shields.io/scrutinizer/g/thephpleague/oauth2-server.svg?style=flat-square)](https://scrutinizer-ci.com/g/thephpleague/oauth2-server)`
			`[![Total Downloads](https://img.shields.io/packagist/dt/league/oauth2-server.svg?style=flat-square)](https://packagist.org/packages/league/oauth2-server)`
Updated docs 2014-10-01 03:14:18 +05:30
			`This library makes working with OAuth 2.0 trivial. You can easily configure an OAuth 2.0 server to protect your API with access tokens, or allow clients to request new access tokens and refresh them.`

			`It supports out of the box the following grants:`

			`* Authorization code grant`
			`* Client credentials grant`
			`* Resource owner password credentials grant`
			`* Refresh grant`

			`You can also define your own grants.`

			`In addition it supports the following token types:`

			`* Bearer tokens`
			`* MAC tokens (coming soon)`
Added questions section 2014-10-01 03:32:10 +05:30			`* JSON web tokens (coming soon)`

Added changelog section 2014-11-09 17:21:54 +05:30			`## Changelog`

			`The changelog can be viewed here - [https://github.com/thephpleague/oauth2-server/blob/master/CHANGELOG.md](https://github.com/thephpleague/oauth2-server/blob/master/CHANGELOG.md).`

			The latest release is `4.0.1` (released 2014-11-09):

			`* Alias the master branch in composer.json (Issue #243)`
			`* Numerous PHP CodeSniffer fixes (Issue #244)`
			`* .travis.yml update (Issue #245)`
			`* The getAccessToken method should return an AccessTokenEntity object instead of a string in ResourceServer.php (#246)`

Added questions section 2014-10-01 03:32:10 +05:30			`## Questions?`

			`This library was created by Alex Bilbie. Find him on Twitter at [@alexbilbie](https://twitter.com/alexbilbie).`