Just use Rack::HTTPCat in your application for all requests to have a link to the https://http.cat for their status under the HTTP-Cat header.

Throttle HTTP requests using a connection pool for all database connections

In case of nginx proxy, I wish to set SCRIPT_NAME to some value, but it sets HTTP_SCRIPT_NAME. So that, I'd like to adjust SCRIPT_NAME and PATH_INFO accordantly

RackMotion provides a Rack-like interface for middleware that can intercept and alter HTTP requests and responses in RubyMotion. It's built on top of NSURLProtocol, which makes it, to borrow a line from Mattt Thompson, an Apple-sanctioned man-in-the-middle attack.

Redispatch your response via another URL. Like a transparent, internal HTTP redirect.

Helpers for rack-test that mean I don't need to remember the accept header syntax, or whether to prepend HTTP to them.

This gem lets your rails app propagate http headers for distributed tracing with Istio.

Allows for easy embedding of content from a remote HTTP server and exporting of the Rails HTML layout into another template.

A simple http(s) request helper

Parses Range HTTP headers for specific fetches

The elegance of Rack with none of the unreliability of HTTP

Support utilities for ruby apps on Google App engine. Wraps GAE specific functionality, and modifies ruby standard libraries where needed (i.e Net:HTTP) to use GAE libraries

This is meant to be used in the same way as HTTParty and uses it under the covers. Except, when the ReadonlyParty module is included in a class, it explicitly disallows post, put, delete, and patch methods from being called on that class.

Small but powerful client around oauth2 and http-rb to interact with APIs

A gem providing way to make HTTP clients stop caching responses.

A bare-bones Ruby HTTP server that talks Rack and uses a thread per connection model of concurrency.

A template resolver for rails 3.2. It retrieves templates via HTTP and stores them in a redis instance, as well as in local caches.

an easy way to deal with simple http request

Antbird is a yet another low level API client for the Elasticsearch HTTP interface.

Very simple resque statistic.