Pattana gives you a user module with Admin Interface to Manage Features, Users and their permissions.

Payify is a Ruby gem that simplifies payment integration into Ruby on Rails projects.

An engine that creates a user class

Pinkman: a new way to orchestrate javascript in Rails.

The premise of this gem is that consumers of your API need versioning and different shapes of your resources. Without proper thought into versioning and shaping, your codebase can quickly resolve into a redundant and confusing state. This gem tries to solve that problem by allowing the API owner to use simple conventions -- Accept headers and ActiveModelSerializer namespacing -- to achieve controller reuse by controllers delegating resource versioning and shaping to the serializer level.

Reusable generic features for Rails applications

Token-based authentication for your Rails API.

Harness the power of PostgreSQL when crafting JSON reponses

Add the Keybase open protocol for identity proofs to your Rails app. There's a bunch of docs for how to use it.

Send model updates to Pusher

This gem allows you: 1) perform multiple POST requests to create multiple files. 2) relate those files with a model using identifiers instead the files themselves

A framework for rapid development of Rails APIs.

A client server Resource API with message queues

Lightweight utility to create simple JSON Apis

Gem to encrypt the API response.

Adapter for ActiveModel::Serializer that enables output in RESTful format.

An opinionated API Token Authentication mechanism.

Pagination support for RocketPants.

RSpec matchers for testing integration between Rails' controllers and ActiveModel::Serialize

Simple testing of ActiveModelSerializers via a collection of matchers.