This is a nice tool. A game I liked to play announced end of service back in 2023. They gave enough notice to let me capture some logs from their cooridinator service.

I captured them in mitmproxy and ran those through this to help me identify all the endpoints and their general structure. (A few things were a misnomer, like the examples suggesting certain values were able to be floats when they could only be integers)

I was able to get a team together and we were able to stand up private servers as a result.