ClaimToken encrypts and signs tokens to be used in a claim-based authentication system

The PromptJoy ruby gem provides a simple and efficient way to interact with the PromptJoy API in Ruby. It handles the API authentication, request formation, and response parsing, providing the users with an intuitive interface to make API calls and retrieve the data.

Simple HTTP proxy which adds Conjur authentication headers

Simple JWT based authentication

Simple admin function for Rails authentication.

OAuth 2.0 authentication and API calls for Rdio Web Service API.

A Rack app/middleware to act as a proxy for OpenID authentication

Rails 4 engine that adds OAuth2 Provider support to any application built with Devise authentication

Devise extension to allow authentication via LDAP, No ORM

Authentication for all Rails Api applications

Webmoney authentication module for Devise using Rack::Webmoney

Devise extension to allow authentication via iChain

Flexible authentication solution for Rails with Warden, translated in FR by Ennder

Devise extension to allow authentication using JWT

Internal authentication handlers for OmniAuth.

A (really) simple gem around fb_graph for canvas authentication in Facebook

The FlexmlsApi gem handles most of the boilerplate for communicating with the flexmls API rest services, including authentication and request parsing.

Add support of OpenStack V3 authentication

Authentication layer for OmniAuth

Google Apps authentication