As part of a broader API optimization initiative, Binance will permanently retire its legacy ListenKey system for user data streams on February 20, 2026, at 07:00 (UTC).

Affected API Endpoints:

The following REST and WebSocket endpoints will be discontinued:

*REST API:**

* `POST /api/v3/userDataStream`

* `PUT /api/v3/userDataStream`

* `DELETE /api/v3/userDataStream`

*WebSocket API:**

* `userDataStream.start`

* `userDataStream.ping`

* `userDataStream.stop`

User Action Required: Developers and systems using these endpoints for real-time account updates (e.g., order execution, balance changes) must migrate to Binance's newer WebSocket Stream methods before the cutoff date to avoid service interruption.

Next Steps: Users should review the official Binance API Changelog and documentation for details on the modernized streaming alternatives. This deprecation is part of Binance's ongoing effort to streamline its infrastructure and improve API performance, reliability, and maintainability. $BTC $ETH $BNB #BTC #MWAM_Crypto