A simple Forge authentication client

Rails authentication with email & password. You can customize the behaviour of the remember me token.

Multi-token authentication Rails engine.

A free and unlimited API for Google Translate without authentication or API key.

A library for doing SASL based authentication mechanisms

Session-oriented authentication and account management system for Ruby on Rails and PostgreSQL

CAS Authentication via Rack Middleware

Re-usable Devise-based authentication mountable engine

A wrapper around Ruby's net-ldap library to ease authentication and record finding

An authentication client for the Audiosocket API.

A Simple Authentication Server

Authentication engine for AIHS

Lightweight authentication for OmniAuth

This is simply the best CMS in town. User authentication, widgets, slideshows, easy UI with drag and drop, publishing system, versioning, etc.

OAuth 2 authentication with the Azure ActiveDirectory V3 API.

Token authentication

A simple no frills user authentication gem for my Rails projects.

HMAC based authentication for HTTP

Drop in password and JWT token authentication for Ruby on Rails

GitHub authentication routes and tools for Sinatra apps