Many companies have internal apps to support their day to day operations. This library is a drop-in Google OAuth authentication and session management library so you don't have to install Devise.

JWT authentication for rails APIs

Authentication for Turbo.

A many-stop shop for authentication.

A minimal reddit API client for Ruby that simplifies concerns such as authentication, rate limiting and extracting JSON.

An easy way to add sms-based two factor authentication to rails apps with Twilio

Update to the aws-sdb gem to support current AWS SimpleDB interface and authentication. Also built upon curl rather than net/http

Simple Google authentication.

This is a simple Ruby interface for gathering authentication and subscription information for Windows Azure. It will automatically gather subscription information based on a publishsettings file or an azureProfile.json file.

The aim is to be configurable and work with as many kinds of authentication as possible.

Plugin to add authentication methods to Sequel Model

Rack authentication middleware

Simple HTTP proxy which adds Conjur authentication headers

Rack webmoney authentication

SimpleAuth HMAC authentication

Super simple authentication system for Rails, using username, email and password.

Rack Middleware for OAuth Authorization and Authentication via/twitter

OAuth Echo authentication by a rack middleware

Bobby is all about guarding the access to actions on controllers and model instances on your Rails projects, and requires you to setup some authentication regime in advance - like Devise, Authlogic et al - with a User model, and preferably a GroupUser and GroupUsersUsers mod...

Really simple authentication scaffold generator for Rails