Authorization library using namespaced strings. Great for OAuth 2.0 APIs.

Rails authorization gem.

Adds authorization to your application

Profile based authorization for ruby on rails

Define an ability class for each of your models to separate authorizations.

Simple authorization

Resource authorization via PORO

Manage authorization restrictions on Ruby on Rails. Ideal for controlling actions of 2 or 3 types of users.

Authorization library that solves problems

Gem to authenticate requests for Dispatch APIs, by passing Authorization token to Dispatch Users API

Kant is a tiny authorization library for your Ruby (especially Rails and/or ActiveRecord) projects.

Converted plugin to gem which will work with association as well.

A base policy class for authorizing controller actions with access to the current_user and object.

Simple gem for generating authorization tokens for google service accounts

Authorization Grant Front on Rails.

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Handcart is a small gem for routing subdomains and also for IP authorization strategies.

Lockdown is an authorization system for RubyOnRails (ver >= 2.1).

Validate identity token claims, headers, and signatures.Exchange authorization codes for refresh tokens.

A11n handles authorization for Rails controllers! It's simple to use and extend.