According to the announcement from Binance, the platform will discontinue its listenKey system as part of ongoing efforts to optimize the Spot API. This change is set to take effect on 2026-02-20 at 07:00 (UTC). As a result, several endpoints will no longer be available to users.
The affected endpoints include the REST API endpoints POST /api/v3/userDataStream, PUT /api/v3/userDataStream, and DELETE /api/v3/userDataStream. Additionally, the WebSocket API endpoints userDataStream.start, userDataStream.ping, and userDataStream.stop will also be discontinued. Users are advised to consult the Binance API Changelog for further details on these changes.
This update is part of Binance's broader strategy to enhance the efficiency and functionality of its API services. Users should prepare for these changes and adjust their systems accordingly to ensure a smooth transition. The announcement underscores Binance's commitment to maintaining a robust and efficient trading environment for its users.