Herd Garden - Browser Superpowers for your AI Agents: Automate tasks, extract data, create AI web tools, and manage MCP servers in your browser or across millions of them. Secure, private, and scalable.

Cocoa Rest Client - A free open source, native Apple OS X app for testing HTTP/REST endpoints

puppeteer - Puppeteer is a Node library which provides a high-level API to control headless Chrome or Chromium...

gURL - gURL is a free, Open Source (GPL) HTTP request generator tool.

Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.

Graphical HTTP Client - Graphical Http Client is a utility to help you test and interact with REST-based web services.