It is called automated trading. Bots are used for the automated trading. You can also check some exchanges like OKX, Binance and other exchanges and read more about their bots. The bots have different works but in a way they can execute trades for you automatically without you doing anything or even when you are sleeping.
But most of the time, this trading bots are high frequency. It operates in many trades, in negative risk rewards, and without the scope of the narrative in the market place such as economic news. For me most of it are flawed. Because in high frequency, you may be winning but the commission or transaction cost could be higher than you are expecting. In negative risk reward, you may have a high win rate but still losing because of it. It is like puting all your faith in robot for our own trading and I personally is not a fan of it.
Also, I'd like to add that most automated trading and trading both require huge subscription fees. Well, of course, what do we expect? But notice that not all are using it, especially experienced traders. Most likely, the market for automated trading is those new to trading or newbies wanting to have quick cash or profit while skipping and ignoring the fundamentals of trading, which are knowledge, skills, and experience.
And if you notice that even a trading bot has the task of doing auto trading, the trader or the one who will use the bot will still need to configure how, when, and what amount it will trade. In short, traders who will use automated trading still need to know the basics, or else even a trading bot will not help them. That's why it's better to trade on your own without relying on a trading bot because it's more fulfilling and you will be proud of yourself.