Extend your Doorkeeper implementation adding a new grant type: assertion. And decoding JWT claim messages to generate access tokens.

InvalidSpecificationException

Firebase Authentication for Ruby applications.

Ruby wrapper for the Enviso API

Connects with envkeeper servers and serve all the allowed enviroments variable per user

Tools for authentication and authorisation with JWTs and OAuth

See summary

ExactTarget API wrapper

Exotic Auth Helpers

Easy database persisted sessions for Rails

Provides middleware to set the correct request headers, and handle authentication for Zooniverse's Panoptes API.

Ruby library to interface with Faria LaunchPad, including an API client and Rails helpers.

FAST Security IG Test Kit

A gem that provides authentication by JWT(json web token) with faye.

JWT authentication done in all apps in form builder

A Ruby wrapper for the Firebase Admin APIs

Verify & decode Firebase ID token on Ruby

Small gem which verifies your firebase auth ID token in server side

A gem for integrating Firebase Authentication into your Rails application..

Verify ID Token