A lightweight and powerful OAuth 2.0 authorization and resource server library with support for all the core specification grants. This library will allow you to secure your API with OAuth and allow your applications users to approve apps that want to access their data from your API.
Laravel wrapper around OAuth 1 & OAuth 2 libraries.
The most popular PHP library for use with the Twitter OAuth REST API.
OAuth 2.0 Client Library
PHP Social Authentication Library
OAuth2 Server for PHP
Laravel Passport provides OAuth2 server support to Laravel.
Support for authenticating users using both OAuth1.0a and OAuth2 in Symfony2.
An OAuth 2.0 bridge for Laravel and Lumen
Multi-provider authentication framework for PHP
PHP 7.2 oAuth 1/2 Library
Symfony2 OAuth Server Bundle
An OAuth library written in PHP by @themattharris
A PHP implementation of a SAML 2.0 service provider and identity provider.
OAuth 1.0 Client Library
External authentication via OAuth and OpenID for the Yii framework
OAuth Service Provider for Laravel 4
A collection of OAuth 2 packages.
Small and easy Twitter library for PHP
Twitter OAUTH authentication for API 1.1
Someline Starter is a PHP framework for quick building Web Apps and Restful APIs, with modern design pattern foundation.
Fitbit library with OAuth.
Light PHP wrapper for the OAuth 2.0 protocol (based on OAuth 2.0 Authorization Protocol draft-ietf-oauth-v2-15)
An OAUTH 2.0 Client Library