unobtrusive_flash takes your flash messages for the backend and automagically passes them to the frontend via HTTP cookies. This works with both regular page loads and AJAX requests, does not tamper with the page body and requires about 3 extra lines of code in your app - how's that for unobtrusi...

HTTP and server side cache integration for Grape and Rails

A small fast HTTP library and server that runs Rails, Camping, Nitro and Iowa apps.

Simple gem that extends Rails `request.remote_ip` to default to Cloudflare's `HTTP_CF_CONNECTING_IP` header.

ElastomerClient is a low level API client for the Elasticsearch HTTP interface.

For WebHDFS and HttpFs of Hadoop HDFS

This Gem provides a simple way to query ClickHouse databases using the HTTP interface.

tiny HTTP server to launch an app in the iOS simulator

Extends Yabeda metrics to collect external calls

Run chef-client at remote node with chef-zero(local-mode) via HTTP over SSH port fowarding.

Using the HTTP V2 Api for Snowflake runs queries & creates native Ruby objects.

UltraHook lets you receive webhooks on localhost. It relays HTTP POST requests sent from a public endpoints (provided by the ultrahook.com service) to private endpoints accessible from your computer.

pluto-feedfetcher - fetch web feeds (w/ conditional HTTP get e.g. use etags, if-modified-since etc.)

Rack::Brotli enables Google's Brotli compression on HTTP responses

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

A lightweight, thread-safe Ruby library for parsing the Accept-Language HTTP header as defined in RFC 2616, with full support for BCP 47 language tags.

A streamlined, production-focused toolkit for building MCP servers in Rails applications. Provides essential base classes, authentication gateways, and HTTP transport with minimal dependencies.

This gem popups Rails' ActionDispatch::Flash within Bootstrap alert like a growl notification. It serves messages with both of AJAX (XHR) and regular requests inside HTTP headers.

Real stubs and spies for HTTP(S) services

HTTP(S) Intercept Proxy