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

simple authentication

Google Apps authentication

Adds authentication key and stores original device registration ids on requests

Genkan is authentication engine for Rails

Ruby gem for simple GitHub authentication

A library to enable per user / group authentication on a read / write basis for git repositories running over ssh

Github authentication integration + common endpoints exposure

bridge for supporting multiple google authentication libraries

Use Kong OAuth2 Authentication with Grape.

A devise omniauth adapter for Rails apps, using Columbia University authentication.

Authentication for Hanami

A simple interface for using the JugenKey Authentication API.

simple Rails role authentication

Keyp is a key:value manager with a command line tool and library API to make managing authentication and configuration information easier.

Koho API client for REST interface. Requires authentication token.

Authentication solution for Rails 3 based on JWT

Enables token authentication against loginradius.com