Enter the telegram4mql.dll file.

This Dynamic Link Library acts as the bridge between the MQL4/5 coding language (used for Expert Advisors) and Telegram’s Bot API. In this post, I’ll explain what it is, how to install it safely, and the critical security checks you must perform first. In simple terms, this DLL allows your MetaTrader code to make HTTP requests to Telegram’s servers. MQL4 cannot natively send a message to a chat app, but by importing functions from this external DLL, it can.

If you absolutely need the DLL version for speed or advanced features (like sending files/photos), only download it from the official GitHub repository of a trusted developer. Otherwise, stick to the WebRequest method.

Here is a minimal example (no DLL needed):

If you’ve been trading with MetaTrader 4 or 5 for more than a week, you know the pain of staring at charts waiting for a signal. What if your robot or indicator could text you instantly on Telegram instead?

string send_telegram(string token, string chat_id, string text)

Disclaimer: I am not affiliated with Telegram or MetaQuotes. Always back up your MetaTrader installation before adding third-party DLLs.