Add facebook as a grant_type to the authentication done through devise_oauth2_providable

Provides an OmniAuth strategy for Drip to make authentication with the Drip API simple

This is a specific SAML strategy that handles authentication to Icelands Íslykill for OmniAuth.

OAuth2 Provider for OC Tanner's EVE authentication API

ruby authentication client for OpenAm

Gem for Rails application - provides you list of online users (for authentication gem 'devise')

Retrieves and refreshes OpenID tokens on behalf of a user when dealing with complex authentication schemes, such as client-side certificates

Provide walled-garden authentication to public members of your github organization for your rack-based apps with warden and omniauth-github

A gem which uses the `mechanize` gem to make it easier to execute remote requests that require an authenticated session. It allows the programmer to provide a `:login` action callback which is executed whenever mechanized_session determines that the session has gone bad or authentication is requi...

Lean authorization and authentication modules for Padrino framework

The client handles authentication and enables users to directly issue requests to the Paymium API

Provides a thin wrapper around the excellent ruby-openid gem from JanRan.

Persephone is a gem which implements simple OAuth2 token based API authentication for Rails 4+ and Mongoid 5+

Easy RESTful authentication + authorization.

A doorman for your Rack application. Checks if REMOTE_USER matches the subdomain. Requires some authentication means to set REMOTE_USER.

PRX Access is a gem to supply authentication headers and descend the HAL hypermedia link tree on PRX's APIs.

A set of methods to more conveniently access the Tozny authentication API as a RP of Tozny from Ruby

The rack-auth-cheat library provides a Rack middleware interface which authenticates any request with a matching username and password. This is useful in development environments, especially as a way to stub out an external authentication system. Be sure to include this from an en...

rack middleware to add u2f authentication to a rack app. Includes registration.

RadiusRB, a ruby RADIUS client library that supports: Authentication, Accounting, Custom dictionaries and Vendor Specific Attributes.