I want to programmatically play the market using a bot how do I obtain such an api

I've developed a bot that's reasonably effective at playing the market (based upon my testing against historical market data). I want to actually deploy said bot but can't seem to find an api to pull market data and/or actually make trades. I mean I've found some but their fees are obscene. I would play crypto but my bot isn't effective against crypto. What are my options?