Kucoin.Net is a strongly typed client library for accessing the Kucoin REST and Websocket API.
- Response data is mapped to descriptive models
- Input parameters and response values are mapped to discriptive enum values where possible
- High performance
- Automatic websocket (re)connection management
- Client side rate limiting
- Client side order book implementation
- Support for managing different accounts
- Extensive logging
- Support for different environments (production, testnet)
- Easy integration with other exchange client based on the CryptoExchange.Net base library
- Native AOT support
The Kucoin.Net documentation is the main resource for installing, configuring, and using the library.
| Resource | Description |
|---|---|
| Client guide | Installation, REST and WebSocket clients, authentication, dependency injection, error handling, and advanced features |
| Examples | Common REST and WebSocket operations |
| API reference | Client interfaces, methods, and properties |
| Shared API guide | Common interfaces and models for working with multiple exchanges |
The library is targeting both .NET Standard 2.0 and .NET Standard 2.1 for optimal compatibility, as well as the latest dotnet versions to use the latest framework features.
| .NET implementation | Version Support |
|---|---|
| .NET Core | 2.0 and higher |
| .NET Framework | 4.6.1 and higher |
| Mono | 5.4 and higher |
| Xamarin.iOS | 10.14 and higher |
| Xamarin.Android | 8.0 and higher |
| UWP | 10.0.16299 and higher |
| Unity | 2018.1 and higher |
dotnet add package Kucoin.Net
Kucoin.Net is available on GitHub packages. You'll need to add https://nuget.pkg.github.com/JKorf/index.json as a NuGet package source.
The NuGet package files are added along side the source with the latest GitHub release which can found here.
Basic request:
// Get the ETH/USDT ticker via rest request
var restClient = new KucoinRestClient();
var tickerResult = await restClient.SpotApi.ExchangeData.GetTickerAsync("ETH-USDT");
var lastPrice = tickerResult.Data.LastPrice;Place order:
var restClient = new KucoinRestClient(opts => {
opts.ApiCredentials = new KucoinCredentials("APIKEY", "APISECRET");
});
// Place Limit order to go long for 0.1 ETH at 2000
var orderResult = await restClient.FuturesApi.Trading.PlaceOrderAsync(
"ETHUSDTM",
OrderSide.Buy,
NewOrderType.Limit,
quantity: 10,
price: 2000,
positionSide: PositionSide.Long
);WebSocket subscription:
// Subscribe to ETH/USDT ticker updates via the websocket API
var socketClient = new KucoinSocketClient();
var tickerSubscriptionResult = socketClient.SpotApi.SubscribeToTickerUpdatesAsync("ETH-USDT", (update) =>
{
var lastPrice = update.Data.LastPrice;
});For more examples and explanations, continue with the Kucoin.Net documentation or browse the compilable repository examples.
Kucoin.Net includes AI-oriented documentation and examples for code generation tools:
| File | Purpose |
|---|---|
AGENTS.md |
Assistant skill with core Kucoin.Net patterns, pitfalls, and examples |
llms.txt |
Short LLM index with links to docs, examples, and critical usage rules |
llms-full.txt |
Detailed LLM context with endpoint routing, code patterns, and anti-hallucination checks |
docs/ai-api-map.md |
Table-style intent-to-method map for Spot, Futures, Unified, WebSocket, and SharedApis |
Examples/ai-friendly |
Compilable single-file examples for common REST, WebSocket, shared API, and error handling workflows |
See cryptoexchange-skills-hub for installable skills.
The CryptoExchange.Net Shared API V2 provides exchange-agnostic interfaces and models for common operations such as retrieving tickers, order books and balances, placing orders, and subscribing to market updates.
V2 uses a strict interface per capability. The SharedApi property on each Kucoin API surface therefore exposes only the operations or subscriptions that surface actually supports. IKucoinSharedApiClient groups the SpotRest, FuturesRest, SpotSocket, and FuturesSocket surfaces for dependency injection and runtime capability lookup.
using CryptoExchange.Net.SharedApis;
using Kucoin.Net.Clients;
using var restClient = new KucoinRestClient();
IGetTickerRest tickerClient = restClient.SpotApi.SharedApi;
var symbol = new SharedSymbol(TradingMode.Spot, "ETH", "USDT");
var result = await tickerClient.GetTickerAsync(
new GetTickerRequest(symbol));
if (!result.Success)
{
Console.WriteLine(result.Error);
return;
}
Console.WriteLine(result.Data.LastPrice);The request and response models belong to CryptoExchange.Net.SharedApis, so the same operation can accept another exchange's IGetTickerRest implementation. When using dependency injection, inject IKucoinSharedApiClient to access all Kucoin Shared API surfaces or inject a capability such as IGetTickerRest directly. Use GetCapability on the aggregate when the operation, transport, or trading mode is selected at runtime.
Kucoin.Net is based on the CryptoExchange.Net base library. Other exchange API implementations based on the CryptoExchange.Net base library are available and follow the same logic.
CryptoExchange.Net also provides shared access to different exchange APIs.
| Exchange | Repository | Nuget |
|---|---|---|
| Aster | JKorf/Aster.Net |  |
| Binance | JKorf/Binance.Net |  |
| BingX | JKorf/BingX.Net |  |
| Bitfinex | JKorf/Bitfinex.Net |  |
| Bitget | JKorf/Bitget.Net |  |
| BitMart | JKorf/BitMart.Net |  |
| BitMEX | JKorf/BitMEX.Net |  |
| Bitstamp | JKorf/Bitstamp.Net |  |
| BloFin | JKorf/BloFin.Net |  |
| Bybit | JKorf/Bybit.Net |  |
| Coinbase | JKorf/Coinbase.Net |  |
| CoinEx | JKorf/CoinEx.Net |  |
| CoinGecko | JKorf/CoinGecko.Net |  |
| CoinW | JKorf/CoinW.Net |  |
| Crypto.com | JKorf/CryptoCom.Net |  |
| DeepCoin | JKorf/DeepCoin.Net |  |
| Gate.io | JKorf/GateIo.Net |  |
| HTX | JKorf/HTX.Net |  |
| HyperLiquid | JKorf/HyperLiquid.Net |  |
| Kraken | JKorf/Kraken.Net |  |
| LBank | JKorf/LBank.Net |  |
| Lighter | JKorf/Lighter.Net |  |
| Mexc | JKorf/Mexc.Net |  |
| OKX | JKorf/OKX.Net |  |
| Pionex | JKorf/Pionex.Net |  |
| Polymarket | JKorf/Polymarket.Net |  |
| Tapbit | JKorf/Tapbit.Net |  |
| Toobit | JKorf/Toobit.Net |  |
| Upbit | JKorf/Upbit.Net |  |
| Weex | JKorf/Weex.Net |  |
| WhiteBit | JKorf/WhiteBit.Net |  |
| XT | JKorf/XT.Net |  |
A Discord server is available here. Feel free to join for discussion and/or questions around the CryptoExchange.Net and implementation libraries.
| API | Supported | Location |
|---|---|---|
| Account Basic Info | ✓ | restClient.SpotApi.Account / restClient.FuturesApi.Account |
| Account Sub-Account | ✓ | restClient.SpotApi.SubAccount |
| Funding Overview | ✓ | restClient.SpotApi.Account |
| Funding Deposit | ✓ | restClient.SpotApi.Account |
| Funding Withdrawal | ✓ | restClient.SpotApi.Account |
| Funding Transfer | ✓ | restClient.SpotApi.Account |
| Funding Trade Fee | ✓ | restClient.SpotApi.Account |
| Spot Trading Market Data | ✓ | restClient.SpotApi.ExchangeData |
| Spot Trading HF Trade | ✓ | restClient.SpotApi.ProAccount |
| Spot Trading Orders | ✓ | restClient.SpotApi.Trading |
| Spot Trading Fills | ✓ | restClient.SpotApi.Trading |
| Spot Trading Stop Order | ✓ | restClient.SpotApi.Trading |
| Margin Trading Margin HF Trade | X | |
| Margin Trading Margin Orders | ✓ | restClient.SpotApi.Trading |
| Margin Trading Margin Info | ✓ | restClient.SpotApi.ExchangeData |
| Margin Trading Isolated Margin | ✓ | restClient.SpotApi.ExchangeData / restClient.SpotApi.Account |
| Margin Trading Margin Trading(V3) | ✓ | restClient.SpotApi.Margin |
| Margin Trading Lending Market(V3) | ✓ | restClient.SpotApi.Margin |
| Futures Trading Market Data | ✓ | restClient.FuturesApi.ExchangeData |
| Futures Trading Orders | ✓ | restClient.FuturesApi.Trading |
| Futures Trading Fills | ✓ | restClient.FuturesApi.Trading |
| Futures Trading Positions | ✓ | restClient.FuturesApi.Acount / restClient.FuturesApi.Trading |
| Futures Trading Risk Limit | ✓ | restClient.FuturesApi.Acount |
| Futures Trading Funding Fees | ✓ | restClient.FuturesApi.ExchangeData |
| API | Supported | Location |
|---|---|---|
| Spot Public | ✓ | socketClient.SpotApi |
| Spot Private | ✓ | socketClient.SpotApi |
| Margin Public | ✓ | socketClient.SpotApi |
| Margin Private | ✓ | socketClient.SpotApi |
| Futures Public | ✓ | socketClient.FuturesApi |
| Futures Private | ✓ | socketClient.FuturesApi |
Any support is greatly appreciated.
If you do not yet have an account please consider using this referal link to sign up:
Link
Make a one time donation in a crypto currency of your choice. If you prefer to donate in a different currency or network send me a message.
USDT (TRX) TKigKeJPXZYyMVDgMyXxMf17MWYia92Rjd
Alternatively, sponsor me on Github using Github Sponsors.
-
Version 9.6.0 - 24 Sep 2026
- Updated CryptoExchange.Net to v13.0.0
- Shared APIs
- Added SharedApi V2 support
- Added
.SharedApiproperty to clients - Added
(I)KucoinSharedApiClientcontaining all V2 SharedApi references - Added
SharedApitoKucoinOptionsto provide SharedApi related options - See https://cryptoexchange.jkorf.dev/docs/shared-api?sharedApiVersion=v2 for more info about the V2 update and https://github.com/JKorf/CryptoExchange.Net/blob/master/docs/SHARED_API_V2_MIGRATION.md for migrating from V1
- SharedApi V1 will still be supported
- Rate limiting
- Added rate limit admission callback to client options to allow rate limit admission ruling on request definition
- Added
WithRateLimitAdmissionAsyncto client to allow rate limit admission ruling on a specific request - Update rate limit safety margin logic
- Fixed some rate limit calculation issues
- Request coalescing
- Sending identical public GET requests on the same client at the same time will only send a single request to the server and use the same response
- Coalescing is enabled by default and can be disabled with the
RequestCoalescingEnabledclient option
- Fixed proxy setting not being used for internal REST requests
-
Version 9.5.0 - 21 Aug 2026
- Updated to CryptoExchange.Net v12.5.0
- Added LastFundingRate to KucoinContract model
- Added MakerFeePercentage, TakerFeePercentage, MaxLongLeverage, TakerFeePercentage, MaxLongLeverage, MaxShortLeverage, UpperFundingCap, LowerFundingCap, LowerPriceLimitPercentage, UpperPriceLimitPercentage to SharedFuturesSymbol mapping
-
Version 9.4.0 - 14 Aug 2026
- Added restClient.UnifiedApi.ExchangeData.GetCallAuctionInfoAsync GetInterestRateIndexAsync and GetPlatformStatsAsync
- Added socketClient.UnifiedApi.SubscribeToCallAuctionInfoUpdatesAsync subscription
- Added MemoRegex and AddressRegex to KucoinAssetNetwork model
- Added BizType EarnRedeem and updated EarnLock mapping values
- Added UpdateTime to KucoinUaPosition model
- Updated LiquidityRole on KucoinUaUserTrade to nullable
-
Version 9.3.0 - 29 Jul 2026
- Updated CryptoExchange.Net to version 12.4.0
- Added calculation of AveragePrice on Shared order models if data is available and AveragePrice is not set
- Added DebuggerDisplay attributes to Result models
- Added AveragePrice property to SharedQuantity model
- Updated SharedFuturesTicker, SharedSpotTicker, SharedTrade and SharedKline to use SharedOrderQuantity for volumes/quantities
-
Version 9.2.0 - 21 Jul 2026
- Updated CryptoExchange.Net to v12.2.0
- Added SpotSymbolCatalog to Shared ISpotSymbolRestClient interface
- Added FuturesSymbolCatalog to Shared IFuturesSymbolRestClient interface
- Added BaseAssetType, BaseAssetSubType, QuoteAssetType and QuoteAssetSubType to GetSymbolsRequest model
- Added DisplayName to SharedSpotSymbol and SharedFuturesSymbol models
- Added BaseAssetType, BaseAssetSubType, QuoteAssetType and QuoteAssetSubType to SharedSpotSymbol and SharedFuturesSymbol models
- Added DebuggerDisplay attributes to Shared models
- Updated GetTickersAsync request weight from 15 to 5
-
Version 9.1.0 - 09 Jul 2026
- Updated CryptoExchange.Net to v12.1.0
- Added OpenPrice, LastQuantity to KucoinAllTick model
- Added TradeId to KucoinTrade model
- Added ContractId to KucoinFuturesTrade model
- Added DailyInterestRate to KucoinFundingRate model
- Added FeeTaxRate to KucoinTradeFee model
- Added OptionSubQuantity, MaxOptionSubQuantity to KucoinUserInfo model, updated quantity properties to int type
- Added FailureReason, FailureReasonMessage, SubStatus properties to KucoinWithdrawal model
- Added RiskRatio, PositionMargin to KucoinUaPosition and KucoinUaPositionUpdate models
- Added restClient.UnifiedApi.Account.SetMarginModeAsync endpoint
- Added restClient.UnifiedApi.Account.SetIsolatedMarginAsync endpoint
- Added closeOrder parameter to restClient.UnifiedApi.Trading.PlaceOrderAsync
- Added restClient.UnifiedApi.ExchangeData.GetFiatPricesAsync endpoint
- Added type parameter to restClient.UnifiedApi.ExchangeData.GetKlinesAsync endpoint
- Added PriceChange, PriceChangePercent, IndexPrice and MarkPrice to KucoinUaTicker model
- Added CollateralStatus to KucoinUaBalanceAsset and KucoinUaBalanceUpdate models
- Added SubscribeToFundingFeeUpdatesAsync and SubscribeToMarkPriceUpdatesAsync subscriptions to UnifiedApi websocket client
- Updated KucoinContract with various missing properties
- Updated KucoinDeposit with missing properties
- Updated DepositStatus enum values
- Removed Incremental value for OrderBookDepth enum, added Incremental10Ms value
-
Version 9.0.1 - 04 Jul 2026
- Fixed subscribing to user streams not triggering socket authentication if a public socket was already connected
-
Version 9.0.0 - 29 Jun 2026
- Result types:
- (Web)CallResult types are replaced by HttpResult, WebSocketResult and QueryResult with the same logic
- WebSocketResult and QueryResult now return additional info for websocket operations
- Updated result types to record type
- Removed implicit result type conversion to bool,
if (result)no longer works, instead useif (result.Success) - Fixed result object nullability hinting, for example Data might be null if Success isn't checked for true
- Clients:
- Added ToString overrides on base API types
- Added Exchange property on BaseApiClient
- Added ApiCredentials property on Api clients
- Updated ILogger source from client name to topic specific client name
- Removed logging from client creation
- Fixed issue in SocketApiClient.GetSocketConnection causing requests to always wait the full max 10 seconds when there was a reconnecting socket
- Shared APIs:
- Added missing dedicated option types
- Added Discover method on ISharedClient interface, returning info on supported capabilities and operations
- Added ResetStaticExchangeParameters method on ExchangeParameters
- Added Status property to SharedWithdrawal model
- Added TradingModes property to SharedBalance model
- Updated Shared ExchangeParameters parameter names to be case insensitive
- Updated code comments
- Replaced ExchangeResult with ExchangeCallResult type
- Removed TradingMode from the response model, only maintained on models where it makes sense
- Added async streaming on UserDataTracker items with StreamUpdatesAsync
- Added cancellation token support to UserDataTracker starting
- Added SupportedEnvironments property to PlatformInfo
- Added Clear() method on UserClientProvider to clear all cached clients
- Added setter to KucoinExchange.RateLimiter to allow custom rate limit settings
- Added BizType EarnLock value
- Various small performance improvements
- Fixed websocket connection attempts counting towards rate limit even when server could not be reached
- Fixed RiskLimitLevel type on KucoinPositionRiskAdjustResultUpdate model
- Result types: