KuCoin WebSocket API
Stream KuCoin spot market data (ticker, snapshot, level2, level3, match, candles) and private balance / order channels with the token-bootstrap handshake.
Stream KuCoin spot market data (ticker, snapshot, level2, level3, match, candles) and private balance / order channels with the token-bootstrap handshake.
KuCoin spot WebSocket client — ticker, snapshot, level2, level3, match, candles plus signed private balance / order channels.
TsgcWSAPI_Kucoin
Windows, macOS, Linux, iOS, Android
Standard / Professional / Enterprise
Set Kucoin.ApiKey / Kucoin.ApiSecret / Kucoin.ApiPassPhrase, pair with a TsgcWebSocketClient, and let the component perform the public/private token bootstrap.
uses
sgcWebSocket, sgcWebSocket_API_Kucoin;
var
WSClient: TsgcWebSocketClient;
KuCoin: TsgcWSAPI_Kucoin;
begin
WSClient := TsgcWebSocketClient.Create(nil);
KuCoin := TsgcWSAPI_Kucoin.Create(nil);
KuCoin.Client := WSClient;
KuCoin.Kucoin.ApiKey := 'your-api-key';
KuCoin.Kucoin.ApiSecret := 'your-api-secret';
KuCoin.Kucoin.ApiPassPhrase := 'your-pass-phrase';
WSClient.Active := True;
KuCoin.SubscribeTicker('BTC-USDT');
KuCoin.SubscribeLevel2('BTC-USDT');
KuCoin.SubscribeMatch('BTC-USDT');
end;// uses: sgcWebSocket, sgcWebSocket_API_Kucoin
TsgcWebSocketClient *WSClient = new TsgcWebSocketClient(this);
TsgcWSAPI_Kucoin *KuCoin = new TsgcWSAPI_Kucoin(this);
KuCoin->Client = WSClient;
WSClient->Active = true;
KuCoin->SubscribeTicker("BTC-USDT");
KuCoin->SubscribeLevel2("BTC-USDT");Token-bootstrap handshake, spot market streams, level2/level3 incremental updates, private balance and order channels.
KuCoin requires a one-shot REST call to obtain a connect-token and endpoint before opening the WebSocket. The component performs that step transparently before connecting.
SubscribeTicker, SubscribeSnapshot, SubscribeLevel2, SubscribeLevel3, SubscribeMatch, SubscribeCandles cover every spot public channel.
Authenticated streams (balance, orderChange, tradeOrder) open after the private connect-token flow — signed with ApiKey, ApiSecret and ApiPassPhrase.
Incremental updates over the L2/L3 channels let you reconstruct the full book locally — the component exposes both snapshot and delta events separately.
KuCoin uses application-layer ping/pong; the component answers automatically and tracks the interval the gateway negotiates at connect time.
TsgcWSAPI_Kucoin_Futures targets the futures contract gateway with the same patterns — one component class per product family.
Authoritative sources for the APIs this component implements.
Deep-link to the component reference, grab the ready-to-run demo project, and download the trial.
| Online Help — API_Kucoin Full property, method and event reference for this component. | Open | |
| Demo Project — Demos\05.Crypto\11.Kucoin Ready-to-run example project. Ships inside the sgcWebSockets package — download the trial below. | Open | |
| Technical Document (PDF) Features, quick start, code samples for Delphi & C++ Builder and primary-source references — this component only. | Open | |
| User Manual (PDF) Comprehensive manual covering every component in the library. | Open |