In response to user feedback and to enhance trading quality, MEXC will officially launch the Self-Trade Prevention (STP) feature, available exclusively to API users, on Sep 11, 2025.
The STP mechanism is designed to prevent orders within the same user account from matching against each other, helping to reduce unnecessary trading costs and improve execution efficiency.
🔧 Supported STP Modes
- CANCEL_TAKER: Cancels the remaining quantity of the taker order to prevent self-trade.
- CANCEL_MAKER: Cancels the remaining quantity of the maker order to prevent self-trade.
- CANCEL_BOTH: Cancels the remaining quantities of both taker and maker orders simultaneously.
⚠️ Important Notes
- When placing orders via API, users can include the "stpMode" parameter to specify the preferred STP mode.
- For more information on STP modes, please refer to the Self-Trade Prevention (STP) FAQs.
If you have any questions or API-related needs, feel free to join the official MEXC API Telegram group, where our dedicated tech team is available 24/7 to assit you. Institutional users may contact the MEXC Institutional Business Team via Telegram.
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