Karat Killer

Karat Killer is an expert advisor for MetaTrader 5 that trades one instrument only: gold, quoted as XAUUSD. Instead of fixed indicator rules, it feeds market data to several machine learning models and combines their outputs into a single decision about whether to buy, sell or stay out.

How it works

The models are packaged in ONNX format and are evaluated by the terminal itself through ONNX Runtime. This means the signal logic runs locally on your computer or VPS and does not depend on an external server. The idea behind using several models is that each one learns in a different way, so a single model that has fitted the past too closely is less likely to drive the final decision on its own.

The developer states that the models were trained on older data and tested on later, unseen data, using walk-forward periods across more than a decade of gold history. Treat such statements as a description of method, not as evidence of future results. You can read the published reports and run your own tests in the Strategy Tester.

Trade direction and exits

• The EA can open both long and short positions.
• Each trade is opened with a stop loss attached.
• The EA is described as free of grid and martingale recovery, so check the position sizes it opens during your own demo testing.

Risk management

Position size is tied to the confidence of the model ensemble, so stronger signals can carry more size than weaker ones. According to the product description, a circuit breaker reduces size during drawdowns and a rolling performance monitor lowers exposure after a weak run, then returns to normal as results recover. The base amount at risk is controlled by a risk percentage input.

Markets and timeframes

• Symbol: XAUUSD only.
• Timeframe: H1.
• Account: any MT5 account whose broker offers gold, though spreads, commissions, slippage and stop level rules will change the outcome from broker to broker.

Settings

Begin with the default or a lower risk value and observe behavior on a demo account before using real funds. Minimum deposit is not stated here, so check what your broker's contract size and margin requirements mean for your balance.

Installation

1. Download the file after purchase and copy the EA into the Experts folder of your MT5 data directory (File, Open Data Folder, MQL5, Experts).
2. Restart MetaTrader 5 or refresh the Navigator panel.
3. Open an XAUUSD H1 chart.
4. Drag Karat Killer onto the chart and, on the Common tab, allow algorithmic trading.
5. Set the risk percentage, confirm, and check that the smiley face or EA icon shows as active.