The HTTP Toolkit is an open-source tool for testing, debugging, and developing with HTTP. It allows you to see all the HTTP requests your app is sending up close, breakpoint individual requests, and mock endpoints or whole servers. It also provides you with a whole lot of other useful information, like the response code, headers, request body, etc. You can even see the amount of traffic that is being sent, and the time that it is being sent. You can even get information about the client that is sending the request, like the IP address, the headers, etc.

This app requires a running HTTP Toolkit desktop app. It will be installed on your computer, and it will be running. It is required to be running in order for this app to work. You will need to visit the website and download the desktop tool. After installing the tool, you will be able to use it on your Android device. It is a one-click tool, so all you need to do is to click the button that says "Connect to HTTP Toolkit." You will then be redirected to the desktop tool, where you can start testing, debugging, and developing with HTTP.