Groonga-client gem supports HTTP or [GQTP (Groonga Query Transfer Protocol)](http://groonga.org/docs/spec/gqtp.html) as the protocol using a client.

webclient gem - yet (another) universal network client interface for world wide web (www) requests via HTTP

A Ruby client generator for HTTP APIs described with a JSON schema

Caldecott Client HTTP/Websocket Tunneling Library

Faraday adapter for HTTPClient

Aga request Ruby is a lightweight gem for increase quality of coding doing request HTTP.

A simple HTTP client

Ruby/NTLM HTTP provides NTLM authentication over http.

HTTP helper library

Cloud Tasks is a fully managed service that allows you to manage the execution, dispatch and delivery of a large number of distributed tasks. You can asynchronously perform work outside of a user request. Your tasks can be executed on App Engine or any arbitrary HTTP endpoint.

Docker v2 registry HTTP API client with support for token authentication

LogMe is a simple way to configure log in your spec. It is especially useful when you need to log Web Service calls or HTTP requests and responses.

Ever wondered what HTTP requests the Ruby gem you are using to connect to a third party API is making? Use HTTP Spy to see what is going on behind the scenes.

Translate strings using the Bing HTTP API. Requires that you have a Client ID and Secret. See README.md for information.

Provides abstractions to handle HTTP protocols.

Persistent HTTP connections using a connection pool

Proxifier adds support for HTTP or SOCKS proxies and lets you force TCPSocket to use proxies.

The official SoundCloud API wrapper. It provides simple methods to handle authorization and to execute HTTP calls.

Easy installation and use of geckodriver, that provides the HTTP API described by the WebDriver protocol to communicate with Gecko browsers, such as Firefox.

LHC is an extended/advanced HTTP client. Implementing basic http-communication enhancements like interceptors, exception handling, format handling, accessing response data, configuring endpoints and placeholders and fully compatible, RFC-compliant URL-template support.