Using AI is an overkill for automated stocks/for-ex/crypto trading.
I did consider using RL / reinforced learning but according to a RL exprert a specialized algorithm will almost always do better than using RL.
In my work I am developing custom trading algorithms which are faster and less resources intensive.
However it may be possible to use most of these algorithms in building of an AI trading system to handle the growth in complexity which is happening with crypto products .