Here's exactly how to go from a trading idea to a working MT4/MT5 Expert Advisor using ea_coder — no coding, no freelancers.

The strategy: Simple moving average crossover on the 1H chart.

• Buy when the 20 EMA crosses above the 50 EMA

• Sell when the 20 EMA crosses below the 50 EMA

• 1% risk per trade

• Stop loss at the previous swing high/low

• Take profit at 2:1 reward-to-risk

What I typed into ea_coder:

"Create an EA for MT5 that trades the 1-hour timeframe. Enter a buy when the 20 EMA crosses above the 50 EMA, and a sell when it crosses below. Use 1% of account balance for position sizing. Place the stop loss at the most recent swing low for buys or swing high for sells. Set take profit at 2x the stop loss distance. Only trade during London and New York sessions (07:00-17:00 GMT). Add a max drawdown limit of 10% that pauses the EA."

What I got back: A fully compiled EA with:

• ✅ Proper entry/exit logic with EMA crossover detection

• ✅ Dynamic position sizing based on account balance

• ✅ Session filtering so it only trades during high-volume hours

• ✅ Built-in drawdown protection that auto-pauses the bot

• ✅ Clean dashboard panel showing live trade stats

The key: Be specific. Don't just say "moving average crossover." Tell it the exact timeframe, risk rules, session filters, and safety limits. The more detail you give, the more robust your EA.

Total time from idea to working EA: about 60 seconds.

If you've been paying freelancers $200+ and waiting weeks for this, you know why this matters.

Most traders lose money on their first Expert Advisor. Not because their strategy is bad — because they build it wrong.

1. Over-optimizing on backtests

Your EA crushes 10 years of historical data? Cool. It'll probably blow up in live markets. The best EAs are simple, robust strategies that work across different market conditions — not curve-fitted monsters.

2. No risk management baked in

If your EA doesn't have a max drawdown limit, lot sizing rules, and session filters built into the logic, you're gambling with extra steps. Risk management isn't optional — it's the entire foundation.

3. Building for one pair only

A strategy that only works on EUR/USD in the London session is fragile. The strongest EAs are designed with multi-pair logic from the start, even if you deploy on one pair initially.

We built ea_coder so you can describe your strategy in plain English and get a production-ready MT4/MT5 EA in minutes — with proper risk management built in by default.

No coding. No freelancer. No waiting weeks.

If you trade forex and want to automate, check it out.