Feasibility review
We review your rules, identify missing decisions and explain the likely technical approach before you commit to a build.
MetaTrader 5 · MQL5 programming
Custom MT5 EA development
ExpertCodeFX builds MetaTrader 5 Expert Advisors from your trading rules. Tell us when the EA should enter, exit and stay out. We’ll check which parts can be automated and what decisions are needed before writing the specification.
The feasibility review is free. We outline the deliverables, timing and a fixed quote before development starts.
From $199 for simple MT5 automation
What we can build or repair
We put the rules, deliverables and price in writing. Approved projects include 30 days of bug-fix support for the agreed specification.
Starter EA build
One clearly defined MT5 strategy with agreed entries, exits, risk rules and configurable inputs.
Professional EA build
Advanced execution, multiple engines, portfolio controls, statistics panels, documentation or broader testing requirements.
Repair, upgrade or research
Debugging MQL5 source you own or can modify, trade management tools, indicator automation and optimisation research.
What the free review covers
- Which rules can be translated into code
- Missing inputs or decisions to resolve
- The suggested platform and build approach
- Proposed deliverables, timing and a fixed quote
What to send
- Your market, exact symbol if known, and timeframe
- Entry, exit, sizing and trade limits
- Desired test evidence, set files or documentation
For repairs, send the version and a short description of how to reproduce the issue. Editable source requires ownership or permission to modify it.
The review assesses whether the software can implement your rules. Automated trading can lose money. Backtest and demo results do not establish how a strategy will perform live.
Illustrative project brief
What clear instructions look like
This example shows how to describe what the EA should do in the tester. Use your own rules and broker settings in the enquiry.
Platform and entry
MT5, EURUSD, 15-minute chart. For the demo test, the EA may open a buy at the next bar when a completed candle closes above the previous 20 completed candles’ high. Check signals on bar close only.
Risk and exit
Use 0.01 lots for the test, at most one open position and no new entries outside 08:00 to 16:00 broker server time. Use a 20-pip stop and a 30-pip target. Keep managing open trades after the session ends.
Acceptance checks
In Strategy Tester, confirm the first qualifying bar triggers one order, a second position is blocked, and the journal records the reason for a skipped signal. Ask for the tester report if it belongs in the quote.
Need to plan the test? Use our free backtest plan generator to record the build, dates, costs and expected behaviour.
Common questions
How much does a custom MT5 Expert Advisor cost?
Simple MT5 automation starts from $199. We provide a fixed quote after reviewing your rules, the required features and the agreed deliverables.
Can you fix or modify an existing EA?
Yes, when you have the editable MQ5 source and own it or have permission to modify it. Protected EX4 and EX5 files are outside the scope.
What will I receive with the build?
The written scope lists the files and checks included in your quote. Ask for source code, a set file, a setup guide or tester evidence when you send your enquiry so we can agree what to include.
How should I check the EA before using it?
Test the exact build and settings in MT5 Strategy Tester, then compare its behaviour on a demo account. See our MT5 installation and first test guide for the setup steps.