Awesome Open Source
Awesome Open Source

Doorkeeper — awesome OAuth 2 provider for your Rails / Grape app.

Gem Version Build Status Code Climate Coverage Status Security Reviewed by Hound GuardRails badge Dependabot

Doorkeeper is a gem (Rails engine) that makes it easy to introduce OAuth 2 provider functionality to your Ruby on Rails or Grape application.

Supported features:

Table of Contents


This documentation is valid for master branch. Please check the documentation for the version of doorkeeper you are using in:

Additionally, other resources can be found on:


Installation depends on the framework you're using. The first step is to add the following to your Gemfile:

gem 'doorkeeper'

And run bundle install. After this, check out the guide related to the framework you're using.

Ruby on Rails

Doorkeeper currently supports Ruby on Rails >= 5.0. See the guide here.


Guide for integration with Grape framework can be found here.


Doorkeeper supports Active Record by default, but can be configured to work with the following ORMs:

ORM Support via
Active Record by default
MongoDB doorkeeper-gem/doorkeeper-mongodb
Sequel nbulaj/doorkeeper-sequel
Couchbase acaprojects/doorkeeper-couchbase
RethinkDB aca-labs/doorkeeper-rethinkdb


Extensions that are not included by default and can be installed separately.

OpenID Connect extension doorkeeper-gem/doorkeeper-openid_connect
JWT Token support doorkeeper-gem/doorkeeper-jwt
Assertion grant extension doorkeeper-gem/doorkeeper-grants_assertion
I18n translations doorkeeper-gem/doorkeeper-i18n

Example Applications

These applications show how Doorkeeper works and how to integrate with it. Start with the oAuth2 server and use the clients to connect with the server.

Application Link
OAuth2 Server with Doorkeeper doorkeeper-gem/doorkeeper-provider-app
Sinatra Client connected to Provider App doorkeeper-gem/doorkeeper-sinatra-client
Devise + Omniauth Client doorkeeper-gem/doorkeeper-devise-client

You may want to create a client application to test the integration. Check out these client examples in our wiki or follow this tutorial here.


See list of tutorials in order to learn how to use the gem or integrate it with other solutions / gems.


OpenCollective OpenCollective

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]

If you prefer not to deal with the gory details of OAuth 2, need dedicated customer support & consulting, try the cloud-based SaaS version:

Wealthsimple is a financial company on a mission to help everyone achieve financial freedom by providing products and advice that are accessible and affordable. Using smart technology, Wealthsimple takes financial services that are often confusing, opaque and expensive and makes them simple, transparent, and low-cost. See what Investing on Autopilot is all about:


To run the local engine server:

bundle install
bundle exec rake doorkeeper:server

By default, it uses the latest Rails version with ActiveRecord. To run the tests with a specific Rails version:

BUNDLE_GEMFILE=gemfiles/rails_6_0.gemfile bundle exec rake

You can also experiment with the changes using bin/console. It uses in-memory SQLite database and default Doorkeeper config, but you can reestablish connection or reconfigure the gem if you need.


Want to contribute and don't know where to start? Check out features we're missing, create example apps, integrate the gem with your app and let us know!

Also, check out our contributing guidelines page.


Thanks to all our awesome contributors!


MIT License. Copyright 2011 Applicake.

Alternative Project Comparisons
Related Awesome Lists
Top Programming Languages
Top Projects

Get A Weekly Email With Trending Projects For These Topics
No Spam. Unsubscribe easily at any time.
Ruby (222,128
Ruby On Rails (68,470
Token (29,703
Authentication (26,879
Provider (15,550
Oauth (14,235
Identity (5,932
Authorization (5,874
Grape (607
Oauth2 Server (272
Oauth Provider (248
Oauth2 Provider (105
Doorkeeper (22