EA Crypto Hunter v8.5.7 Source Code MQ4 for MetaTrader 4 (MT4) is an Expert Advisor (EA) designed specifically for trading cryptocurrencies. EAs like Crypto Hunter are typically used to automate cryptocurrency trading on MT4, which is traditionally more common with Forex. The EA likely implements a strategy that analyzes the crypto market using technical indicators, price action, or predefined algorithms to open and close trades.