MEXC will gradually migrate its Futures WebSocket market data feeds from JSON to Protocol Buffers (Protobuf).

What You Need to Do

• Migration Deadline: Dec 1, 2026, 10:00 (UTC)

• If you currently receive Futures market data through WebSocket feeds in JSON format, you must update and test your API integrations to support Protobuf and complete the migration before the deadline.

Additional Information:

• For detailed integration instructions and data specifications, please refer to the Futures WebSocket Protobuf Integration Documentation.

• If you encounter any issues during the migration, please feel free to contact API technical support for assistance.

We apologize for any inconvenience this change may cause and appreciate your understanding and cooperation.

MEXC Team