RailsKeycloakAuthorization adds Rack Based, Policy Enforcement Point (PEP) implementation to authorize requests before they reach the controllers. It is designed to work with Keycloak Authorization Services.

An authorization framework for graphql-ruby

Bali (Bulwark Authorization Library) is a to-the-point authorization library for Rails.

Authorization for API Requests

A fork of Steffen Bartsch’s declarative_authorization equipped with localization based on Rails default I18n.

Rails authorization for well defined authorization objects interfaces

LogicalAuthorization allows authorization in a finely grained framework, including ACLs and database based permissions, designed to slide into your project seamlessly. You should be able to add logical_authz to your Gemfile and add needs_authorization to your base controller class and be...

Access Manager that uses policy services to determine authorization

An(other) Rails authorization solution which allows an app to aggregate and arbitrate authorization for permissions from multiple roles and multiple products (permissifed models).

CCCUX provides a comprehensive admin interface and user experience layer for CanCanCan authorization. It includes role-based access control (RBAC) models, admin controllers for managing users, roles, and permissions, and a clean interface for authorization management.

Rails 3 compatible rails-authorization-plugin gem

A simple authorization gem

A plugin-based framework for supporting multiple authentication and authorization systems in Rails/Rack apps. Supports resource-oriented route-by-route access control lists with TLS authentication.

An integrated Authentication, Authorization and Roles solution for your Rails 3 app with support for multiple ORMs

If you like the straight forward and effective nature of Strong Parameters and suspect that CanCan might be overkill for your project then you'll love Petergate's easy to use and read action and content based authorizations.

Simple, light and functional authorization library

Easy role authorization in rails

Role based authorization with CanCanCan for Active Admin

Aegis is an authorization solution for Ruby on Rails that supports roles and a RESTish, resource-style declaration of permission rules.

Pundit authorization support for graphql