A hypermedia browser for the CloudApp Collection+JSON API.

worlddb plugin for web service/HTTP API (JSON/CSV/HTML)

webservice - yet another HTTP JSON API (web service) builder

A RubyMotion model framework for RESTful JSON APIs.

Respondo standardizes JSON API responses across Rails applications. Every response gets success, data, message, and meta fields. Automatic pagination meta for Kaminari and Pagy collections. ActiveRecord serialization, error extraction, and flexible HTTP codes built in.

Numverify: Global Phone Number Validation & Lookup JSON API

RESTful public JSON API for units of measures following Russian national standard (OKEI).

Ruby wrapper for JSON API for open exchange rate.

Imports Natural Earth geospatial data and provides a mountable JSON/GeoJSON API endpoint.

A Ruby wrapper for the Orkut RPC-JSON API.

JSON API Serializer to produce RESTful serializer using plain Ruby Ojects that follows common sense and heavily inspired by StormpathAPI talks

Provides client-side ActiveModel records that consume REST JSON APIs

Ruby library for consuming Redox JSON APIs

Please see http://qrng.anu.edu.au/FAQ.php#api for more information on the bare JSON API, as well as the science behind it.

Requester coordinates json api requests and responses between the server test suite and the client test suite in Rails-based web applications.

Resting Pug allows you to create a JSON API with just adding one line to your controller and fully customize it with overriding small and simple helper methods.

Unofficial wrapper for the complete Rotten Tomatoes v1.0 JSON API. Here, I work to provide developers with a full featured library letting them focus on the important part, their idea.

A fast and hackable JSON API engine based on EventMachine to be used as a backend for Angular, ember and all sorts of things. It is REALLY fast and have a DSL like sinatra, also have an embebed cache system

Lightweight, implementation-agnostic JSON API tests

Smooth provides a simple DSL building powerful JSON APIs on top of ActiveRecord.