Announcement of KuCoin API Upgrade (2026-09-04)

2026/09/02 11:31:00

To further enhance the performance of KuCoin UTA-API, KuCoin will conduct non-disruptive upgrades at 12:00 (UTC) on September 04, 2026, upgrade is expected to last 120 minutes.

During the upgrade periods, the UTA WebSocket may experience temporary disconnections, data loss, or delays.

If any of the above issues occur, users may reconnect to the WebSocket to restore the connection.

After the upgrade, the following updates will be introduced:

New error code

Error Code	Message
110188	Too many requests right now. The system is busy. Please try again late.

Thank you for your understanding and support.

For more information about the API, please join the official

KuCoin API Telegram Community.

You may also contact us via email at: api@kucoin.com

We sincerely apologize for any inconvenience this adjustment may cause and appreciate your continued support and trust in the KuCoin API.