KuCoin API Notification
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Important Announcement: Upgraded Mark Price Calculation Method on KuCoin Futures(2025-10-22)

Mark Price = Median(Price1, Price2, Contract Price)

Price1 = Index Price × [1 + Latest Funding Rate × (Time to Next Funding / Funding Interval)]

Price2 = Index Price + Basis Moving Average

Contract Price = Latest Transaction Price

https://www.kucoin.com/announcement/en-important-announcement-upgraded-mark-price-calculation-method-on-kucoin-futures-2025-10-22

https://www.kucoin.com/support/26684973273625
KuCoin Futures Will Delist the FRAGUSDT,MAJORUSDT and GORKUSDT Perpetual Contracts

To mitigate market risks and provide users with a better trading experience, KuCoin Futures will delist the following perpetual contracts at 08:00 on October 28, 2025 (UTC).

https://www.kucoin.com/announcement/en-kucoin-futures-will-delist-the-fragusdtmajorusdt-and-gorkusdt-perpetual-contracts-10-28
KuCoin Futures Will Delist the LAUNCHCOINUSDT Perpetual Contract

Due to the brand upgrade of Launch Coin (LAUNCHCOIN), which will be renamed as Believe (BELIEVE), KuCoin Futures will delist the LAUNCHCOINUSDT perpetual contract at 08:00 on October 25, 2025 (UTC).

https://www.kucoin.com/announcement/en-kucoin-futures-will-delist-the-launchcoinusdt-perpetual-contract-2025-10-25
KuCoin Will Adjust the Tick Size for Certain Spot Trading Pairs

In order to increase market liquidity and improve trading experience, KuCoin will be adjusting the Tick Size (i.e., the minimum change in the unit price) of the following Spot trading pairs at 10:00 on October 27, 2025 (UTC).

https://www.kucoin.com/announcement/en-kucoin-will-adjust-the-tick-size-for-a-certain-spot-trading-pair-20251027
KuCoin Futures Will Delist the FUELUSDT,LOOKSUSDT and AVAILUSDT Perpetual Contracts

To mitigate market risks and provide users with a better trading experience, KuCoin Futures will delist the following perpetual contracts at 08:00 on October 26, 2025 (UTC).

https://www.kucoin.com/announcement/en-kucoin-futures-will-delist-the-fragusdtlooksusdt-and-availusdt-perpetual-contracts-10-26
KuCoin Futures Will Advance the Delisting of the LAUNCHCOINUSDT Perpetual Contract

Due to the instability of the index price, KuCoin Futures will advance the delisting of the LAUNCHCOINUSDT perpetual contract to 06:00 on October 25, 2025 (UTC).

https://www.kucoin.com/announcement/en-kucoin-futures-will-advance-the-delisting-of-the-launchcoinusdt-perpetual-contract-2025-10-25
Funding Rate Settlement Frequency of Multiple USDⓈ-M Perpetual Contracts Will Be Resumed

KuCoin Futures will adjust the funding fee settlement interval for the following USDⓈ-M perpetual contracts back to every four hours, max funding rate remains unchanged. Effective from 08:00 on Octomber 28, 2025 (UTC).

https://www.kucoin.com/announcement/hk-funding-rate-settlement-frequency-of-multiple-usd-m-perpetual-contracts-will-be-resumed-10-28
Changes to Funding Rate Intervals for CUDISUSDT Perpetual Contracts

KuCoin Futures will adjust the funding rate intervals for the CUDISUSDT Perpetual Contract at 01:00 on November 05, 2025 (UTC).

Before Adjustment:Every 4 Hours
After Adjustment:Every 1 Hours


https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-cudisusdt-perpetual-contracts-11-05
Changes to Funding Rate Intervals for UAIUSDT Perpetual Contracts

KuCoin Futures will adjust the funding rate intervals for the UAIUSDT Perpetual Contract at 07:00 on November 07, 2025 (UTC).

Before Adjustment:Every 4 Hours
After Adjustment:Every 1 Hours


https://www.kucoin.com/announcement/hk-changes-to-funding-rate-intervals-for-uaiusdt-perpetual-contracts-1107
Changes to Funding Rate Intervals for KAVAUSDT Perpetual Contract

To better align perpetual futures prices with spot index prices, KuCoin Futures will adjust the funding rate settlement frequency for the KAVAUSDT Perpetual Contract at 9:00 (UTC) on November 9, 2025.

Before Adjustment:Every 8 hours
After Adjustment:Every 1 hour

https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-kavausdt-perpetual-contract-11-09
Changes to Max Funding Rate for DOTUSD Perpetual Contract

To better align perpetual futures prices with spot index prices, KuCoin Futures will adjust the max funding rate for the DOTUSD Perpetual Contract at 08:00 (UTC) on November 13, 2025.


https://www.kucoin.com/announcement/en-changes-to-max-funding-rate-for-dotusd-perpetual-contract-11-13
Changes to Funding Rate Intervals for LAUSDT Perpetual Contracts

KuCoin Futures will adjust the funding rate intervals for the LAUSDT Perpetual Contract at 13:00 on November 15, 2025 (UTC).

Before Adjustment:Every 4 Hours
After Adjustment:Every 1 Hours


https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-lausdt-perpetual-contracts-11-15
Update: Futures TickerV2 WebSocket Field Enhancement

Dear developers,

We have updated the Futures TickerV2 WebSocket topic (/contractMarket/tickerV2) by adding descriptions for the sn and sequence response fields.

These fields are shared with the Order Book – Incremental topic (/contractMarket/level2).

Please note:
sn and sequence increases chronologically
but may not be continuous, as updates are sent only when the best bid/ask changes

Effective Time:
The new sn and sequence settings will take effect today at 4:00 PM (UTC+8).

Thank you for your support.
-- KuCoin API Team
KuCoin Will Adjust the Tick Size for Certain Spot Trading Pairs

In order to increase market liquidity and improve trading experience, KuCoin will be adjusting the Tick Size (i.e., the minimum change in the unit price) of the following Spot trading pairs at 8:00 on November 18, 2025 (UTC).

https://www.kucoin.com/announcement/en-kucoin-will-adjust-the-tick-size-for-a-certain-spot-trading-pair-20251118
In order to improve the performance of KuCoin API Spot, KuCoin will carry out a live upgrade at 06:30 (UTC) on November 19, 2025. The upgrade time will be 30 minutes. The websocket push of user balance/private order/l2 increment might cause loss or delay during the upgrade period.

https://www.kucoin.com/announcement/en-announcement-of-kucoin-api-upgrade-november-19-2025