Right now I am using a bot that notifies me about the increase in volume of buying activity of a particular coin on particular exchange. This is helping me a lot in tracking coins and I have made considerable profit through them. This bot doesn't really give me signals. But is good. I don't use a bot for giving be buying or selling signals. Right now I am mostly dependent upon my own research for trading and I am making decent profit in trading.

I would love to see what you are building and would like to test it for you if you are making it for public use.