Authentication with BasicAuth.

Adds one time token authentication to devise

A drop-in Rails engine that adds secure user registration with email confirmation to your rails 8+ application, that uses Rails Authentication Generator.

Ember-auth is an authentication framework for ember.js. It is expected to work out of the box with rails + devise.

A gem providing HMAC based authentication for HTTP. This is the DNC Labs fork.

An Authentication framework for Merb

Mozilla BrowserID/Persona authentication module that works with Rails 3.1+ and Devise 2.1+

An extremely easy way to protect your site by requiring Google logins without having to set up a traditional authentication system

A Ruby on Rails engine for authentication with Dailycred.

AuPair provides token-based authentication and versioning for Rails API applications.

Unofficial Ruby library implementing AWS Cognito's SRP authentication flow

Simple gem to enable rack powered Ruby apps to authenticate via REST with an enterprise CAS authentication server via X509 client certificates.

A ready-to-go application with authentication, authorization, logging... with bootstrap flavor

MediaWiki::Butt provides a fully-featured interface to the MediaWiki API. It includes methods for changing wiki content, authentication, and queries.

Ghoul is a simple yet good looking interface for your git repositories written in sinatra. It is currently only for demonstration purposes and use on your secure local machine as it does not enforce any authentication as of yet.

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

Signature generation library for API authentication.

Provides token-based authentication for Rails API apps.

Easy way to authentication and authorization

Really simple authentication scaffold generator for Rails