It's actually sorta surprising if there isn't anything that does this yet as there are tons of miners and all could benefit from it.
A lot of bots are BTC only or only a handful of altcoins, so lots of exchanges and altcoins. I'm looking into CAT right now.
if you want only sell from you have balance from mine
you not need BOT, you only selling pending order , or sell limit, is never bot is can prediction higher price(the best price) and then can get the best price youre selling altcoin
Sure, I could make a sell order, that doesn't determine what the market is willing to pay though. Whole reason people use bots is to sell when the market itself decides to crash or has a uptick it needs to take advantage of that. A normal sell/buy order doesn't do this.