My favorite dev tool this year has been Proxyman. It's a well crafted super useful tool for anyone working with HTTP APIs.
Money very well spent!

https://proxyman.com/

Proxyman · Debug, intercept & mock HTTP with Proxyman

Proxyman is a native, high-performance macOS app, which enables developers to capture, inspect, and manipulate HTTP/HTTPS requests/responses with ease. Support iOS and Android Simulator and Physical Device.

Proxyman
@swimburger never seen this before. Reminds me of Fiddler