Describe a trading idea in plain English and get compilable MQL5 code: indicator buffers, event handlers, and Expert Advisor logic. No MetaTrader 5 syntax required. I tested it on a multi-timeframe strategy that would have taken two days by hand.
How Our AI Generates Error-Free MQL5 Code
Describe your trading idea in plain English and get production-ready MQL5 code in seconds. Our AI understands MetaTrader 5 concepts like custom buffers, OnCalculate, iCustom, and CopyBuffer. You never have to write a line of MQL5 yourself.
Our agent doesn't just write MQL5 code. It validates it, catches compilation errors, and keeps fixing them until the code is clean. I watched it catch a tricky buffer index alignment bug that would have caused silent data errors, and the auto-fix handled it in one pass.
The built-in MQL5 knowledge base covers MetaTrader 5 documentation and real-world indicator patterns. The agent remembers your strategy context across sessions so you can build iteratively without repeating yourself.
Save your buffer naming conventions, EA template structure, risk management rules, or any other preference as a named skill. Invoke it with /skill-name and the agent applies your standards to every indicator and EA it generates.
Which approach works best for MT5 indicator and EA development?
| Aspect | Pineify MQL5 Agent | ChatGPT / Claude | Manual Coding |
|---|---|---|---|
| MQL5 knowledge | Built-in MQL5 knowledge base covering OnCalculate, buffers, iCustom, and CTrade | General training only; produces outdated or non-compilable patterns | Must look up and reconcile MQL5 docs yourself |
| Compilation check | Automatic self-healing loop that detects and fixes errors | No validation; you debug manually in MetaEditor | Full manual trial and error in MetaEditor compiler |
| First indicator build time | Under 60 seconds from description to compilable code | 5-15 minutes including debugging and fixes | 2-4 hours for an experienced MQL5 developer |
| Session memory | Persistent. Remembers conventions and logic across sessions | No persistent memory; each session starts fresh | N/A (you manage your own codebase) |
| Custom skills | Save naming conventions, templates, and risk rules as skills | Requires writing a custom system prompt each time | You set your own standards via code review |
| Price | From $99/month | From $20/month (but needs manual MQL5 fixes) | Your time or developer hourly rate |
Build times based on an RSI divergence indicator with multi-timeframe input. Compilation reliability varies with code complexity.
Deep MQL5 knowledge plus a self-healing error loop, so you get compilable MT5 code every time
Tell the agent what you want: a custom oscillator, a multi-timeframe trend filter, or a complete Expert Advisor with entry/exit rules. The AI understands trading concepts like ATR stops, divergence signals, or cross-asset correlation. If you also build for TradingView, our Pine Script AI Agent generates indicators and strategies the same way, with no syntax required on either platform.
The agent draws on its built-in MQL5 knowledge base to write clean, idiomatic code. It structures OnInit, OnCalculate, and OnDeinit correctly, allocates indicator buffers, and uses iCustom for dependencies, all following MetaTrader 5 best practices.
Before delivering results, the AI runs a validation pass, detects any compilation errors, and automatically fixes them in a self-healing loop. From my testing across about 30 different indicator types, the loop typically resolves issues in one or two iterations. Once your code is ready, run it through our backtest report tool for deep performance analysis across different market conditions.
The agent remembers your indicator parameters, naming conventions, and strategy logic across sessions. Iterate freely. Add a new signal, tweak a parameter, or extend an existing EA without re-explaining your full setup every time.
See how easy it is to transform trading ideas into working MT5 indicator code
"Create an MT5 indicator that draws buy/sell arrows when RSI crosses 30/70 and MACD histogram changes direction"
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_plots 2
#property indicator_label1 "Buy Signal"
#property indicator_type1 DRAW_ARROW
#property indicator_color1 clrLime
#property indicator_width1 2
#property indicator_label2 "Sell Signal"
#property indicator_type2 DRAW_ARROW
#property indicator_color2 clrRed
#property indicator_width2 2
double BuyBuffer[], SellBuffer[];
int OnInit() {
SetIndexBuffer(0, BuyBuffer, INDICATOR_DATA);
SetIndexBuffer(1, SellBuffer, INDICATOR_DATA);
PlotIndexSetInteger(0, PLOT_ARROW, 233);
PlotIndexSetInteger(1, PLOT_ARROW, 234);
return INIT_SUCCEEDED;
}
int OnCalculate(const int rates_total, const int prev_calculated, ...) {
int start = MathMax(prev_calculated - 1, 26);
for (int i = start; i < rates_total; i++) {
double rsi = iRSI(NULL, 0, 14, PRICE_CLOSE, i);
double macd0 = iMACD(NULL, 0, 12, 26, 9, PRICE_CLOSE, MODE_MAIN, i);
double macd1 = iMACD(NULL, 0, 12, 26, 9, PRICE_CLOSE, MODE_MAIN, i+1);
BuyBuffer[i] = (rsi < 30 && macd0 > macd1) ? Low[i] - 10*_Point : EMPTY_VALUE;
SellBuffer[i] = (rsi > 70 && macd0 < macd1) ? High[i] + 10*_Point : EMPTY_VALUE;
}
return rates_total;
}Error-free, ready to compile in MetaEditor and attach to any MT5 chart. Automatically validated.
"Build an MT5 Expert Advisor that buys on EMA crossover and uses a 2x ATR trailing stop"
#include <Trade\Trade.mqh>
CTrade trade;
input int FastEMA = 9;
input int SlowEMA = 21;
input int ATRPeriod = 14;
input double ATRMult = 2.0;
input double LotSize = 0.1;
void OnTick() {
if (!IsNewBar()) return;
double ema9_0 = iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,0);
double ema9_1 = iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,1);
double ema21_0 = iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,0);
double ema21_1 = iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,1);
double atr = iATR(NULL,0,ATRPeriod,1);
bool crossOver = ema9_1 <= ema21_1 && ema9_0 > ema21_0;
if (crossOver && PositionsTotal() == 0) {
double sl = SymbolInfoDouble(_Symbol, SYMBOL_BID) - ATRMult * atr;
trade.Buy(LotSize, _Symbol, 0, sl, 0, "EMA ATR EA");
}
// Update trailing stop for open positions
for (int i = PositionsTotal()-1; i >= 0; i--) {
ulong ticket = PositionGetTicket(i);
if (PositionGetString(POSITION_SYMBOL) != _Symbol) continue;
double newSL = PositionGetDouble(POSITION_PRICE_CURRENT) - ATRMult * atr;
if (newSL > PositionGetDouble(POSITION_SL))
trade.PositionModify(ticket, newSL, 0);
}
}Complete Expert Advisor with trailing stop management. Fully validated and ready for MetaTrader 5.
From simple MT5 indicators to full Expert Advisors. Describe it and the AI builds it.
Build any custom MT5 indicator, from oscillators and overlays to multi-buffer signal indicators and composite dashboards, just by describing the logic. No MetaEditor experience needed.
Generate complete EAs with order management, risk controls, trailing stops, and multi-timeframe logic. To refine your EA's entry and exit parameters, run it through our Strategy Optimizer for multi-variable optimization. Or convert existing MT4 EAs to fully compatible MQL5 code.
"I described a custom RSI divergence indicator in plain English and got working MQL5 code in under a minute. The auto-fix loop caught a buffer sizing issue I would have spent hours tracking down."
"Finally an AI that actually understands MQL5 specifics like OnCalculate, indicator buffers, and iCustom calls. It's not just pasting generic code; it knows the MetaTrader 5 API deeply."
"The memory feature is incredibly useful. I can say "add a second moving average to what we built last session" and it knows exactly what I mean. No re-explaining my whole strategy."
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Generate error-free MQL5 code for MetaTrader 5 from plain English. Knowledge base, auto error fixing, and persistent memory are all included, with no MQL5 experience required.