by 
This MetaTrader 4 expert advisor functions as a local trade copier, allowing users to replicate trades from one terminal to another. It operates by sharing a data file between a master and a slave instance on the same computer or filesystem. The slave EA manages order execution, including market, limit, and stop orders
Copier & bridge · MT4
Flask SQL MT4 Price Bridge
This MetaTrader 4 expert advisor functions as a data bridge to external web services.
GitHub stars1
Forks0
Last update1 year ago4 Aug 2025
LicenceNone stated
Overview
Flask SQL MT4 Price Bridge automatically captures bid and ask prices for specific financial instruments and transmits them to a Python Flask server via HTTP POST requests. The system packages market data into JSON format on every tick and sends it to a configurable URL. The repository includes a backend template using SQLite for database storage and an HTML interface for visualization. It is designed for developers seeking to integrate MetaTrader price feeds with web-based applications and does not perform any trading actions or risk management.
- Bid and ask price extraction
- Automated HTTP POST JSON transmission
- Multi-symbol market data monitoring
- Integration with Python Flask and SQLite
Details
Author
autodidacttrade on GitHub
Type
Copier & bridge
Platform
MetaTrader 4 (MQL4)
Markets
Forex, Gold, Crypto
Timeframes
Any timeframe
Risk profile
No grid, martingale or hedging logic was found in its code or README. That says nothing about how it performs: backtest it first.
EA files
Input parameters
Read from SendPricesToFlask.mq4. Defaults are the author's; change them in the EA's Inputs tab.
| Name | Type | Default | Description |
|---|---|---|---|
symbol1 | string | EURUSD. | |
symbol2 | string | XAUUSD. | |
symbol3 | string | XRPUSD | |
url | string | http://127.0.0.1:5000/receive |
How to install it
- 1Download the sourceUse "Download source (.zip)" above, or clone autodidacttrade/flask_sql_mt4_prices_demo from GitHub, and unzip it.
- 2Open the data folderIn MetaTrader choose File, then Open Data Folder, and go to MQL4/Experts.
- 3Copy the filesCopy the .mq4 file into Experts.
- 4Compile in MetaEditorOpen the file in MetaEditor and press Compile. Fix any missing includes the compiler reports.
- 5Test before you tradeRun it in the Strategy Tester, then attach it to a demo chart and allow algorithmic trading.
Third-party code. ForexR did not write, test or endorse this EA, and the summary above was generated automatically from its README and code. ForexR lists only repositories with readable source code and never hosts files. Read the code, backtest it and use a demo account first; automated trading can lose money quickly.
Similar expert advisors
DWX Connect is an open-source bridge that links external trading strategies written in Python, C#, or Java to MetaTrader 4 and 5. It functions as a server EA that facilitates communication via file-based messaging, allowing users to execute trades and subscribe to market data without coding in MQL. The EA manages trade
Telegram API Signal Bot is a notification utility for MetaTrader 4 designed to broadcast trading activity to external communication channels. The EA monitors the terminal for order events, including executions and partial closes, and transmits the details to a Telegram group or channel using the Telegram Bot API. It of
This expert advisor provides a communication layer between MetaTrader 4 and external software applications via the ZeroMQ protocol. It operates as a server that listens for remote commands to open, modify, or delete market and pending orders. The system features a request-response mechanism and a dedicated push server
This expert advisor functions as a data bridge for streaming real-time market information from MetaTrader 4 and 5 to external applications. It utilizes the ZeroMQ library to transmit price ticks and order book updates to a remote server. The tool is intended for developers building quantitative trading platforms or dat
Neo Trader is an order execution bridge that facilitates the transfer of trade data from TradingView to MetaTrader 4 and 5 terminals. Operating through a local socket server and a browser extension, it allows users to execute trades directly from TradingView position drawing tools. The expert advisor handles market and
Need a broker for MT4?
Compare regulated brokers that support MetaTrader, with spreads, minimum deposits and leverage side by side.
Compare brokers