Bots trade crypto by automating the manual commands a user would normally make. They rely on triggers, referred to as signals, to tell them when to execute the buy and sell commands based on conditionals you select. Think of it as "if X, then Y." These signals monitor the price movement of coins based on API connections with the crypto exchange, and then follow your commands when the market conditions are met. Multiple signals can be used to create complex trading strategies that are very difficult to execute manually. Common automated trading bots are DCA bots, Grid bots, Futures bots, Options bots, Arbitrage bots, and HODL bots.