Authy plugin to add two factor authentication to Devise. This gem is deprecated, please see the README for details.

API Binding for OpenStack. With Swauth authentication for Swift

Simple CAS authentication for Rails, Sinatra or any Rack-based site

Windows Azure Active Directory authentication client library

Auth0 is an authentication broker that supports social identity providers as well as enterprise identity providers such as Active Directory, LDAP, Google Apps, Salesforce. OmniAuth is a library that standardizes multi-provider authentication for web applications. It was created to be powerful, f...

WebAuthn ruby server library ― Make your application a W3C Web Authentication conformant Relying Party and allow your users to authenticate with U2F and FIDO2 authenticators.

Provides a thin wrapper around the excellent ruby-openid gem from JanRan. gem version is unofficial, github fork of rails's by moro

Provides a thin wrapper around the excellent ruby-openid gem from JanRan. gem version is unofficial, github fork of rails's by moro

Add authentication to applications and secure services with Keycloak

JWT authentication for Warden, ORM agnostic and accepting the implementation of token revocation strategies.

Discogs::Wrapper is a full wrapper for the http://www.discogs.com API V2. Supports authentication, pagination, JSON.

An authentication system generator for Rails applications

This gem provides the extracted Token Authenticatable module of devise. It enables the user to sign in via an authentication token. This token can be given via a query string or HTTP Basic Authentication.

Devise based user authentication for AlchemyCMS.

Ruby/NTLM provides message creator and parser for the NTLM authentication.

Rails API Auth is a Rails Engine that implements the "Resource Owner Password Credentials Grant" OAuth 2.0 flow as well as Facebook authentication for API projects.

basic helpers and authentication methods for using warden with padrino also providing some hooks into Rack::Flash

Docker v2 registry HTTP API client with support for token authentication

The spark_api gem handles most of the boilerplate for communicating with the Spark API rest services, including authentication and request parsing.

Neo4j integration with the Devise authentication framework