EA Licensing & Protection: Sell Your Expert Advisor Securely

You spent months developing a profitable Expert Advisor — if you sell or license it without protection, buyers can redistribute your .ex5 file freely. EA licensing binds execution to specific accounts, machines, or subscription status. This guide explains protection methods for commercial EA sellers and developers.

Common EA Protection Methods

• Account number binding — EA runs only on whitelisted MT4/MT5 account numbers
• Hardware ID lock — ties license to VPS or PC fingerprint
• Expiry date — time-limited trials or subscriptions
• Online license server — EA checks HTTPS API before trading
• DLL protection — compiled libraries hide core logic (use carefully)

Selling EAs vs Licensing Subscriptions

One-time sale with account binding suits fixed customer base. Subscription models need online verification — customer pays monthly, server returns valid/invalid. Plan renewal grace periods and offline fallback policy to avoid angering paying users during outages.

Legal and Platform Considerations

Disclose that past performance does not guarantee future results. Comply with broker terms on automated trading and commercial signal sales. Use NDAs when hiring developers — see our custom EA cost guide for contracting tips.

Pair licensing with a quality product — validate strategies without curve fitting and host on a reliable VPS for professional delivery.