Minimal authorization through OO design and pure Ruby classes
The authorization Gem for Ruby on Rails.
Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.
🔐 oauth2 - A Ruby wrapper for the OAuth 2.0, & 2.1 Authorization Frameworks, including OpenID Connect (OIDC)
🔑 A Ruby wrapper for OAuth 1.0, and 1.0a protocols; clients & servers