Mock Mode: Browser apps can't talk directly to broker APIs (CORS + secret-key handling). Real trading needs a small local backend that bridges to IB Gateway, the Crypto.com signed-request API, or the MT5 Python MetaTrader5 package. Swap the mock functions in settings.js for fetch() calls to that backend.
IBKR (Equities)
Crypto.com
Never paste real API keys here. Use a backend.
MetaTrader 5
Real MT5 needs the terminal app running + Python MetaTrader5 package via your backend.