I started working with https://gemini.com, they actually have integration with FIX protocol, which I’m currently not using because you cant easily connect like the HTTP based APIs https://docs.gemini.com/fix-marketdata/#connecting
They do have a websocket API which is really nice for getting streaming market data.
For me new to fin tech programming it’s good to build from scratch to learn all the nuances of how the exchanges work.
I’m thinking of making project out of this and sharing the code with a few interested developers, potentially open sourcing it when its ready but the first test will be to see if we can make any money from it.
Right now BitCoin is rising so fast, it’s near impossible to beat the market, but I see an opportunity given how volatile it is.