You can link TradingView signals to MT4 or MT5 using a trade copier or routing service that connects the two platforms. The idea is that TradingView generates the alert, and the router translates it into an executable order on MT4 or MT5. It works well for automation if your rules are clear, but you still need to watch out for slippage and broker execution speed. I use Valetax Analysis IQ alongside this setup to validate the signals before letting them auto-execute, which helps filter out weak trades.