Access token for client-side and API authentication.

A full featured wrapper for interacting with the base Google Data API, including authentication and basic object handling

API library for GAuthify.com (Google Authenticator, SMS, email multi factor authentication).

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

A simple Forge authentication client

Paas-Word is an online authentication and user management service. This Ruby on Rails Rack middleware library by Paas-Word enables website owners with a Ruby backend to restrict their endpoints to authenticated users only and retrieve user data.

Bushido SSO authentication module for Devise. A slight variant of the excellent work from Nat Budlin on devise_cas_authenticatable.

Truefactor.io can be your only authentication option or you can add it to existing auth schemes such as devise, authlogic etc.

Fernet rack authentication middleware

Includes authentication, tracking, and lots of convenience methods

Authentication for Turbo.

Active Directory authentication module for Devise, based off of LDAP Authentication

Collection of users and applications authentication methods for use when you want your users or applications authorize using the Exvo platform.

Base controller, model, resource and policy classes; authentication with JWT, per request tenant selection, exception reporting

Eteos Client for Rails allows cross-website authentication via the Eteos authentication service (www.eteos.com) in two lines of code for Rails applications. Even integrates with ActiveRecord user models simply and easily.