AI Telegram Signal Copier Expert Advisor

Overview

The AI Telegram Signal Copier is a MetaTrader 5 Expert Advisor that automatically retrieves AI-parsed trading signals from a Flask backend and executes them on a trading account.

The Expert Advisor forms the execution layer of the system. It periodically polls the backend for new trading signals, converts the received trading intent into the appropriate MetaTrader 5 order type, executes the trade, notifies the user of the outcome, and reports the execution status back to the backend.

The Expert Advisor is designed to work with a backend that has already processed Telegram messages using the OpenAI API and converted them into a structured JSON format.

Features

• Periodically polls a Flask REST API for pending trading signals.
• Parses structured JSON responses.
• Supports market and pending orders.
• Resolves broker-specific symbol names automatically.
• Executes trades using the MetaTrader 5 Trade library.
• Reports execution status back to the backend.
• Displays execution information using Print(), Alert(), and SendNotification().
• Prevents duplicate execution of previously processed signals.

Supported Trading Intents

The Expert Advisor currently supports the following trading intents:

• BUY_MARKET
• SELL_MARKET
• BUY_LIMIT
• SELL_LIMIT
• BUY_STOP
• SELL_STOP

The backend determines the trading intent, while the Expert Advisor converts it into the appropriate MetaTrader 5 order type based on current market conditions.

Input Parameters

Parameter	Description
InpApiBaseUrl	Base URL of the Flask backend.
InpLotSize	Fixed lot size used for every trade.
InpTimerSec	Polling interval, in seconds, for checking new signals.
InpVerboseLog	Enables detailed logging in the Experts tab.

Processing Workflow

The Expert Advisor performs the following steps repeatedly:

1. Poll the backend for the next pending signal.
2. Parse the returned JSON response.
3. Ignore duplicate signals that have already been processed.
4. Resolve the broker-specific trading symbol.
5. Determine the appropriate MetaTrader 5 order type.
6. Execute the trade.
7. Notify the user of the execution result.
8. Send the execution status back to the backend.

Requirements

Before using the Expert Advisor:

• Enable WebRequest in MetaTrader 5.
• Add the backend URL to the list of allowed URLs.
• Ensure the Flask backend is running and accessible.
• Configure MetaTrader push notifications if mobile notifications are required.

Current Limitations

This Expert Advisor is intended as a reference implementation accompanying an educational article series.

The current version does not include:

• Dynamic position sizing.
• Spread validation.
• Trading session filtering.
• Duplicate signal detection across backend restarts.
• Retry logic for failed network requests.
• Advanced broker symbol mapping rules.
• Risk management based on account balance or equity.

These features can be added without changing the overall architecture of the Expert Advisor.

Purpose

The purpose of this project is to demonstrate how MetaTrader 5 can communicate with external AI services through a REST API to automate trade execution from natural language trading signals.

The implementation prioritizes clarity, maintainability, and extensibility, making it a suitable foundation for developers who wish to build more advanced AI-assisted trading systems.

License

This project is provided for educational purposes. Always test the Expert Advisor thoroughly on a demo account before using it in a live trading environment.