🚀 Invitation: KuCoin Spot Listing Alerts for Market Makers

Dear Market Making Partners,

Stay ahead of the curve and optimize your liquidity strategies! We invite you to subscribe to our official Spot Listing Notification Channel. Whenever a new token or trading pair is listed on KuCoin, you will receive instant, real-time alerts containing all the critical technical parameters and auction timelines you need to prepare your systems.

👉 https://t.me/+nTceSnPb6zc2YWY1

To further enhance the performance of KuCoin PRO-API, KuCoin will conduct a non-disruptive upgrade at 07:00 (UTC) on May 15, 2026. The upgrade is expected to last 180 minutes.
During the upgrade period, users may experience the following impacts:
The PRO WebSocket may experience temporary disconnections, data loss, or delays. Users may reconnect to the WebSocket to restore the connection.
A small number of PRO API requests may experience temporary issues during this period, which are expected to recover within 5 seconds.
Public market data APIs may experience temporary data loss, inaccurate data, or delays. The affected endpoints include:
https://api.kucoin.com/api/ua/v1/market/ticker
https://api.kucoin.com/api/v1/market/allTickers
https://api.kucoin.com/api/v1/market/stats

After the upgrade, the following updates will be introduced:
[Modify] Pro Websocket Private Channel Order (https://www.kucoin.com/docs-new/3470228w0). Added new enum value MATCH for the response field eT, supporting pushing MATCH events for UTA FUTURES trading
[Modify] Pro REST Get Position List (UTA) (https://www.kucoin.com/docs-new/rest/ua/get-position-list-uta). Added response field:
adlPercentage：ADL ranking percentage of the futures position. For example, a value of 0.12 represents 12%.
[Modify] Pro Websocket Position Push (https://www.kucoin.com/zh-hant/docs-new/3470243w0). Added response field:
adl: ADL ranking percentage of the futures position. For example, a value of 0.12 represents 12%.
[Modify] Pro REST Batch Cancel Orders by Symbol (https://www.kucoin.com/docs-new/rest/ua/batch-cancel-order-by-symbol). Added new enum value:MARGIN
[Modify] Classic REST Get Trade History (https://www.kucoin.com/docs-new/rest/futures-trading/orders/get-trade-history). For liquidation orders, the tradeType will return the value: liquid
[Add] Pro REST Get API Key Info (https://www.kucoin.com/docs-new/rest/ua/get-apikey-info)
[Add] Pro REST Add Sub-Account (https://www.kucoin.com/docs-new/rest/ua/add-sub-account)
[Add] Pro REST Add Sub-Account API (https://www.kucoin.com/docs-new/rest/ua/add-sub-account-api)
[Add] Pro REST Delete Sub-Account API (https://www.kucoin.com/docs-new/rest/ua/delete-sub-account-api)
[Add] Pro REST Get Deposit Address (https://www.kucoin.com/docs-new/rest/ua/get-deposit-address)
[Add] Pro REST Get Withdrawal Quotas (https://www.kucoin.com/docs-new/rest/ua/get-withdrawal-quotas)
[Add] Pro REST Withdraw (https://www.kucoin.com/docs-new/rest/ua/withdrawal)
[Add] Pro REST Cancel Withdrawal (https://www.kucoin.com/docs-new/rest/ua/cancel-withdrawal)
[Add] Pro REST Get KYC Region (https://www.kucoin.com/docs-new/rest/ua/get-kyc-region)


In addition, KuCoin will launch an Automatic Load Balancing to further improve API service stability and latency performance.
The system will dynamically balance traffic and allocate resources based on the real-time load conditions of each shard, helping users achieve more stable connections and improved latency performance.
During future load balancing switches, some WebSocket connections may be temporarily disconnected by the server. These switches are expected to occur at most once or twice per week. Users may reconnect to restore normal connectivity.

In case of significant market volatility prior to the scheduled time, the upgrade may be postponed, and a separate announcement will be made accordingly.
For further API discussions or feedback, please join our official API Telegram group:
https://t.me/KuCoin_API or contact us via email at: api@kucoin.com
We sincerely apologize for any inconvenience caused. Thank you for your continued support of the KuCoin API!
KuCoin API Team

KuCoin will support the ticker change of U token to the UNION token. We will automatically complete the U swap to UNION for U holders on KuCoin.

KuCoin Trading Bot will delist U/USDT at 9:00 on May 21, 2026 (UTC), including Spot Grid, AI Spot Trend, Spot Martingale, Infinity Grid, DCA, Spot Grid AI Plus and Smart Rebalance. Users are advised to shut down the running Trading Bots before the time above. If the user fails to close the bot before the time above, the system will automatically shut down the relevant trading bot for the user.

The withdrawal and deposit services for U will be closed at 8:00 on May 22, 2026 (UTC).

The trading service for U/USDT trading pair will be suspended at 10:00 on May 22, 2026 (UTC). We recommend that you cancel your pending orders of U as soon as possible.

From 7:00 to 8:00 on May 25 (UTC), 2026, the PRO&Classic WebSocket may experience temporary disconnections, data loss, or delays. Users may reconnect to the WebSocket to restore the connection.

To complete the change, we will convert the U to UNION at a ratio of 1:1 (1 U = 1 UNION). Related follow-ups to this subject will be announced separately as soon as possible.

After the migration is complete, please ensure you select UNION when depositing on-chain assets to KuCoin.

https://www.kucoin.com/announcement/en-kucoin-will-support-the-ticker-change-of-union-u-to-union

👉👉Important Upgrade👈👈

To further enhance the stability, fairness, and accuracy of the funding rate mechanism in reflecting real market supply and demand, KuCoin Futures will gradually adopt a new funding rate calculation algorithm. The first batch of 140 perpetual contracts is scheduled to be migrated on 08:00 on June 1, 2026 (UTC).

For more details, please refer to the announcement:
https://www.kucoin.com/announcement/en-important-funding-rate-calculation-update-for-several-perpetual-contracts-2026-06-01

To improve WebSocket connection establishment and authentication efficiency, KuCoin will optimize the PRO WebSocket handshake and authentication flow.

With this optimization, the handshake and authentication stages will be changed from synchronous processing to asynchronous processing, reducing blocking behavior and improving the number of authentication requests that can be processed per unit of time.

In addition, when a WebSocket connection fails authentication due to invalid, expired, or unauthorized credentials, the server will return an “auth failed” message via WebSocket frame, helping clients quickly identify the issue and take appropriate action.

This optimization will not affect successfully authenticated WebSocket connections. We recommend that API users add handling logic for the authentication failure message where applicable.

To improve the API trading experience, enhance trading capabilities under the Unified Trading Account (UTA) framework, and reduce integration complexity across different account modes, KuCoin will upgrade the Pro API and release related API updates.
After the upgrade, the Pro API will be upgraded to the UTA API. Going forward, the UTA API will exclusively support the Unified Trading Account (UTA) mode.

Upgrade Schedule
The upgrade is scheduled for 08:00 on June 3, 2026 (UTC) and is expected to last 180 minutes.

Upgrade Impact
During the upgrade period, users may experience the following impacts:
The PRO WebSocket may experience temporary disconnections, data loss, or delays. Users may reconnect to the WebSocket to restore the connection.

Upgrade Details
3.1 UTA API Upgrade
Currently, certain Pro API endpoints are compatible with both Classic Accounts and Unified Trading Accounts (UTA). Moving forward, we will continue to focus on the Unified Trading Account framework and further enhance the UTA API with new capabilities and feature optimizations. Compatibility support related to Classic Accounts will enter maintenance mode and will no longer be the primary focus for future feature development, performance improvements, or long-term platform evolution.

[Adjustment Details]
The Pro API will be upgraded to the UTA API, which will primarily support the Unified Trading Account (UTA) going forward.
Compatibility support related to the Classic Account within UTA API will enter maintenance mode.

If you are currently using the “Pro API + Classic Account” model, we strongly recommend completing one of the following migration options as soon as possible:
Switch to the Unified Trading Account (UTA) mode for trading;
Continue using the Classic API for Classic Account trading.

This will help ensure a smooth migration and uninterrupted trading operations.

3.2 API Upgrades
WebSocket handshake and authentication flow optimization:
Synchronous processing will be changed to asynchronous processing during the handshake and authentication stages, reducing blocking behavior and improving the number of authentication requests that can be processed per unit of time.
When a WebSocket connection fails authentication due to invalid, expired, or unauthorized credentials, the server will send an “auth failed” message via WebSocket frame, enabling clients to quickly identify the failure reason and take appropriate actions. This optimization does not affect successfully authenticated WebSocket connections.

[Modify] UTA REST Get Position List (UTA), added response field:
positionMargin: Margin occupied by the futures position.
riskRatio: Risk ratio of an isolated futures position.

[Modify] UTA Websocket Position, added response field:
pM: Margin occupied by the futures position.
r: Risk ratio of an isolated futures position. For example, 0.65 represents 65%.

[Modify] Classic REST Get Deposit List & Classic REST Get Deposit Detail. The endpoints have added the following status return values to display more detailed deposit statuses:
ROLLBACKING : Reversing deposit. Please wait.
ROLLBACK : Deposit reversed. No funds have been credited to the account. Please contact support for assistance.
WAIT_RISK_MGT: The deposit is undergoing standard risk verification. Please contact support for assistance.
RISK_MGT_REJECTED : The deposit is rejected after risk verification. Please contact support to submit required information for review.
PRE_SUCCESS: Funds have been credited to the account ahead of final Block confirmation.
WAIT_TRM_MGT: The deposit is undergoing standard compliance verification. Please contact support for assistance.
TRM_MGT_REJECTED : The deposit is rejected after risk verification. Please contact support to submit required information for review.
[Add] Fast API - Apply for Fast Withdrawal
Support user-defined API key permissions in the OAuth authorization flow, including granting withdrawal permissions
New permission: Fast Withdrawal (Fast API withdrawal permission)
Support API withdrawal with 2FA verification

[Add] UTA REST Batch Modify Margin Mode ,batch modifies the margin mode for futures positions

[Add] UTA REST Modify Isolated Futures Margin ,extract or add margin for Isolated Futures position
[Modify] UTA REST Place Order ,add new field 'closeOrder' to support closing position for specified symbol

[Modify] UTA REST Get Transfer Quotas ,add new enum 'UNIFIED' in feild 'accountType' in query params and response params

Title: Changes to Funding Rate Intervals for HOMEUSDT Perpetual Contracts (06-04)
Content: KuCoin Futures will adjust the funding rate intervals for the HOMEUSDT Perpetual Contract. The next settlement will be at 21:00 on June 4, 2026 (UTC). Before Adjustment: Every four hours After Adjust…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-homeusdt-perpetual-contracts-06-04

Title: Changes to Funding Rate Intervals for HIVEUSDT Perpetual Contracts (06-04)
Content: KuCoin Futures will adjust the funding rate intervals for the HIVEUSDT Perpetual Contract. The next settlement will be at 0:00 on June 5, 2026 (UTC). Before Adjustment: Every one hour After Adjustmen…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-hiveusdt-perpetual-contracts-06-04

Title: Mid-Year Summer Mega Savings: Level Up with KuCoin Pay on KryptoMate!
Content: The heat of summer is matching the heat of the biggest crypto-shopping event of the season! KuCoin Pay is thrilled to partner with KryptoMate to bring you the Mid-Year Summer Mega Savings campaign. W…
Url: https://www.kucoin.com/announcement/KuCoinPay-KryptoMate-MidYearSummerMegaSavings202606

To improve API resource allocation efficiency and enhance flexibility for high-frequency trading scenarios, we will upgrade the UTA API rate limit mechanism.

After this upgrade, the API rate limit model will be changed from the current “independent rate limit per UID” model to a “unified master account and sub-accounts rate limit with flexible quota allocation” model.

1. Effective Time
This upgrade is scheduled to take effect on: 2026-06-08 08:00:00 (UTC)

2.Scope of Impact
This adjustment applies only to:
Rate Limit Pool: Unified Trading Account (UTA) rate limit pool
API Scope: Applies only to UTA-API REST. Classic API remains unchanged.

3. The following APIs have been added:

1）https://www.kucoin.com/docs-new/rest/ua/get-api-rate-limit-cap
2）https://www.kucoin.com/docs-new/rest/ua/set-sub-accounts-api-rate-limit
3）https://www.kucoin.com/docs-new/get-api-rate-limit
4）https://www.kucoin.com/docs-new/get-all-api-rate-limit

For more detail , please refer to :
https://www.kucoin.com/announcement/en-announcement-on-uta-api-rate-limit-rule-upgrade

Title: Changes to Funding Rate Intervals for BABYUSDT Perpetual Contracts (06-05)
Content: KuCoin Futures will adjust the funding rate intervals for the BABYUSDT Perpetual Contract. The next settlement will be at 13:00 on June 5, 2026 (UTC). Before Adjustment: Every four hours After Adjust…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-babyusdt-perpetual-contracts-06-05

Title: Changes to Funding Rate Intervals for MBOXUSDT Perpetual Contracts (06-06)
Content: Dear KuCoin Users: KuCoin Futures will adjust the funding rate intervals for the MBOXUSDT Perpetual Contract at 05:00 June 6, 2026 (UTC). Before Adjustment：Every 4 Hours After Adjustment：Every 1 Hour…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-mboxusdt-perpetual-contracts-06-06

Title: Changes to Funding Rate Intervals for HEIUSDT Perpetual Contracts (06-06)
Content: KuCoin Futures will adjust the funding rate intervals for the HEIUSDT Perpetual Contract. The next settlement will be at 21:00 on June 6, 2026 (UTC). Before Adjustment: Every four hours After Adjustm…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-heiusdt-perpetual-contracts-06-06

Title: Changes to Funding Rate Intervals for LABUSDT Perpetual Contracts (06-07)
Content: KuCoin Futures will adjust the funding rate intervals for the LABUSDT Perpetual Contract. The next settlement will be at 12:00 on June 7, 2026 (UTC). Before Adjustment: Every one hour After Adjustmen…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-labusdt-perpetual-contracts-06-07

Title: Changes to Funding Rate Intervals for HEIUSDT Perpetual Contracts (06-07)
Content: KuCoin Futures will adjust the funding rate intervals for the HEIUSDT Perpetual Contract. The next settlement will be at 16:00 on June 7, 2026 (UTC). Before Adjustment: Every one hour After Adjustmen…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-heiusdt-perpetual-contracts-06-07

Title: Announcement of API Upgrade: 500-Level Depth Feed & API Rate Limit
Content: To improve the API trading experience while optimizing market data delivery and API resource management, KuCoin will introduce two major updates to the UTA API: Order Book 500-level Depth Websocket P…
Url: https://www.kucoin.com/announcement/en-api-upgrade-announcement-500-level-depth-feed-api-rate-limit

Title: Changes to Funding Rate Intervals for BABYUSDT Perpetual Contracts (06-08)
Content: Dear KuCoin Users: KuCoin Futures will adjust the funding rate intervals for the BABYUSDT Perpetual Contract at 08:00 June 8, 2026 (UTC). Before Adjustment：Every 1 Hours After Adjustment：Every 4 Hour…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-babyusdt-perpetual-contracts-06-08

Title: KuCoin Futures Will Delist the DUSDT, MBOXUSDT & HIGHUSDT Perpetual Contracts (2026-06-11)
Content: To mitigate market risks and provide users with a better trading experience, KuCoin Futures will delist the following perpetual contracts at 7:00 on June 11, 2026 (UTC). The detailed delisting plan i…
Url: https://www.kucoin.com/announcement/en-kucoin-futures-will-delist-the-dusdt-mboxusdt-highusdt-perpetual-contracts-2026-06-11

To improve the API trading experience while optimizing market data delivery and API resource management, KuCoin will introduce a major updates to the UTA API: Order Book 500-level Depth Websocket Push Optimization

https://www.kucoin.com/docs-new/3470221w0
A new incremental depth streaming mode depth=increment@10ms is introduced (supported for both Spot and Futures).

Compared with the existing depth=increment streaming mode, the new depth streams provide the following improvements:
Streaming mode
Changed from incremental updates to a “snapshot + incremental updates” model.

Depth levels
Depth coverage is adjusted from full order book to 500 levels.

Update frequency
Updates are aggregated and pushed every 10ms instead of real-time pushing.

Depth update logic
For price levels outside the top 500 depth, changes in size will not be pushed.
For price levels within the top 500 depth:
If a price level size becomes 0 due to trades, a message with size = 0 will be pushed for that price.
If a price level is pushed out of the top 500 depth due to order book changes, a message with size = 0 will be pushed for that price.

Migration Instructions
The new depth mode depth=increment@10ms will be officially launched at 08:00 on June 17, 2026 (UTC).
The current UTA API full real-time incremental depth feed depth=increment is expected to be deprecated on 15th July 2026 (UTC). A separate announcement will be issued prior to the deprecation with the exact timing. Please pay attention to updates.
Users are advised to begin migration from June 17, 2026 (UTC).
When subscribing to channel obu, set the parameter depth to increment@10ms, while keeping all other parameters unchanged.

For more detail , please refer to :
https://www.kucoin.com/announcement/en-api-upgrade-announcement-500-level-depth-feed-api-rate-limit

Title: Changes to Funding Rate Intervals for HUSDT Perpetual Contracts (06-09)
Content: KuCoin Futures will adjust the funding rate intervals for the HUSDT Perpetual Contract. The next settlement will be at 01:00 on June 9, 2026 (UTC). Before Adjustment: Every four hours After Adjustmen…
Url: https://www.kucoin.com/announcement/en-changes-to-funding-rate-intervals-for-husdt-perpetual-contracts-06-09