Kucoin offers public Market Data through REST Endpoints, when you call one of these endpoints, you will get a snapshot of the market data requested.
The Market Data Endpoints don't require authentication, so are freely available to all users.
Example: to get the snapshot of the ticker BTC-USDT, do the following call
oKucoin := TsgcWSAPI_Kucoin.Create(nil);
ShowMessage(oKucoin.REST_API.GetTicker('BTC-USDT'));