A devise extension for remote user authentication.

Merb plugin that provides authentication support

[Unofficial] Authentication Strategy for Warden to allow Amazon Cognito user sign in and JWT

An Authentication framework for Merb

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

Add secure, production-ready API key authentication to your Rails app in minutes. Handles key generation, hashing, expiration, revocation, per-key scopes; plus a drop-in dashboard for your users to self-issue and manage their own API keys.

The Google Sign-In API gives OAuth2 JSON Web Tokens (JWT) as response data upon user sign-in. A necessary step for a service provider to trust such a token is validatation. Accepting the token without validation would allow a malicious client to simply assert itself in your system. ...

Use Google Apps as an Authentication Provider

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

MYOB authentication strategy for OmniAuth

Twitch authentication with OAuth 2. Result tokens can be used for API libraries, chat libraries or something else.

Firebase Authentication wrapper for Ruby

Latvija.lv authentication strategy for OmniAuth

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

Omniauth plugin for Artsy authentication.

Simple and modulable authentication gem

Opinionated minimal Rails authentication scaffolding with Hotwire, React, or Vue + Tailwind.

Authentication Middleware for Gollum Wiki

A Sinatra Extension that simplifies using twitter for login and authentication.

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