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Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.

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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

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.

| | Link | | :--- | :--- | | 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.


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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

. 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.

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