The API Developer Kit helps with developing APIs and Socket.io Aplications by giving you control over fetch (POST and GET) and socket.io-client without having to write code. This allows you to test client side interaction with the server before you write the production logic.

Please note that you will have to add sudo in some cases

git clone https://github.com/maxwellmatthis/api-dev-kit.git && cd api-dev-kit

Everything is in one HTML file. Just open it in a browser. If you are trying to work with a local API you might need to use Cross-Origin Resource Sharing to access it. Note: To use the socket.io features you will need to be connected to the internet since the kit uses cloudflare CDN to get the newest socket.io-client version.