Announcement of KuCoin API Upgrade (2026-07-01)

06/29/2026, 12:11:00

To further enhance the performance of KuCoin UTA-API, KuCoin will conduct non-disruptive upgrades at 08:00 (UTC) on July 1, 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:
 
 
  • [Modify] UTA REST Get Klines. The symbol field has been updated. You can query corresponding K-line data via the values below:
    • {symbol}-index-price: Index price K-line for contract trading pairs
    • {symbol}-mark-price: Mark price K-line for contract trading pairs
    • {symbol}-premium-index: Premium index K-line for contract trading pairs
 
  • [Modify] UTA REST Get Ticker . New fields added in response: priceChange, priceChangePercent, indexPrice, markPrice
 
 
  • [Modify] UTA Websocket Balance . Added push field cS: platform-level margin collateral status
 
  • [Modify] Classic REST Get Deposit List & Classic REST Get Deposit Detail. Added new response value：
    • New preConfirms: Min number for balance confirmation
    • New confirms: Confirmation number for balance unlock
    • New currentConfirms：Current deposit confirmation number

 

 
 
  • [Modify] Classic Websocket / Futures Trading / Private Channels / Positions: /contract/positionAll topic  added Funding Fee Settlement pushes for All Positions, added param "symbol" in response field "data"
 
 
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.