How the connection works
The desktop app discovers the MetaTrader installations on your PC and, on your confirmation, installs its packaged connector (`.ex5` for MT5, `.ex4` for MT4) after checking its hash. The EA then talks only to the loopback address on your own computer — or, if that URL was never allow-listed in the terminal, through a file channel inside the terminal's own data folder under the same protocol and authentication.
No broker password is ever read, and no DLL imports are required. Sessions are short-lived bearer tokens bound to the terminal, account login, and broker; if the account on the chart changes, the EA pauses rather than trading the wrong one.
Guided setup and verification
Open Terminals in the desktop app, pick the installation, and accept the consent screen — it lists every file the app will write and every setting it will change before anything happens. The app then verifies the connector: file integrity, heartbeat, account, broker, and EA version, all reported on one screen.
The same screen repairs files, rotates credentials, or removes the installation cleanly later. If the automated run cannot finish, the page falls back to manual steps instead of leaving you guessing.
MetaTrader 4: attach by hand
Automated startup attachment is MT5-only: MT4 build 1473 ignores the startup configuration, so the manual path is the MT4 default — enable AutoTrading, refresh Navigator, and drag the EA onto a chart. It needs MetaTrader 4 build 600 or later; the EA refuses to start below it.
The MT4 connector ships with the app and speaks the same protocol as MT5, but live verification on a real MT4 terminal is still pending. Do the evaluation below on MT5, or on an MT4 demo with the understanding that the connector itself is the unverified part.
Verify on demo first
Do the whole sequence on a MetaTrader demo terminal before any live account: install, verify, map one symbol, enable routing with the typed confirmation, and watch one signal travel from inbox to broker response. Live routing works the same way, which is exactly why the first order should not be a live one.
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