Subscribe to MEXC spot WebSocket streams (deals, kline, depth, bookTicker, miniTicker) and authenticated account channels with HMAC signing.
Quick answer: TsgcWSAPI_MEXC is the sgcWebSockets component that connects Delphi and C++ Builder apps to MEXC. It decodes MEXC's Protobuf spot streams (deals, kline, depth, bookTicker, miniTicker) and opens the listenKey-based private account-data stream.
MEXC spot WebSocket client — deals, kline, depth, bookTicker and miniTicker plus the listenKey-based private account stream.
TsgcWSAPI_MEXC
Windows, macOS, Linux, iOS, Android
Standard / Professional / Enterprise
Pair with a TsgcWebSocketClient and call SubscribeDeals / SubscribeKLine / SubscribeDepth — the component handles MEXC's Protobuf framing.
uses
sgcWebSocket, sgcWebSocket_API_MEXC;
var
WSClient: TsgcWebSocketClient;
MEXC: TsgcWSAPI_MEXC;
begin
WSClient := TsgcWebSocketClient.Create(nil);
MEXC := TsgcWSAPI_MEXC.Create(nil);
MEXC.Client := WSClient;
MEXC.MEXC.ApiKey := 'your-api-key';
MEXC.MEXC.ApiSecret := 'your-api-secret';
WSClient.Active := True;
MEXC.SubscribeDeals('BTCUSDT');
MEXC.SubscribeDepth('BTCUSDT');
MEXC.SubscribeKLine('BTCUSDT', mki5m);
end;// uses: sgcWebSocket, sgcWebSocket_API_MEXC
TsgcWebSocketClient *WSClient = new TsgcWebSocketClient(this);
TsgcWSAPI_MEXC *MEXC = new TsgcWSAPI_MEXC(this);
MEXC->Client = WSClient;
WSClient->Active = true;
MEXC->SubscribeDeals("BTCUSDT");
MEXC->SubscribeDepth("BTCUSDT");Protobuf payload decoding, spot market streams, account-data stream with automatic listenKey refresh.
MEXC v3 ships market data as Protobuf-encoded binary frames; the component decodes them and surfaces typed events.
SubscribeDeals, SubscribeDepth, SubscribeKLine, SubscribeBookTicker, SubscribeMiniTicker cover the spot public surface.
StartUserDataStream returns a listenKey; SubscribeListenKey opens the account-data WebSocket for balance / order / position updates.
MEXC sends ping frames; the component answers automatically. WatchDog re-subscribes after reconnect.
One TsgcWSAPI_MEXC instance can handle hundreds of symbols by chaining subscribe calls — routing is internal.
TsgcWSAPI_MEXC_Futures targets the MEXC futures contract gateway with the same component surface.
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_MEXC Full property, method and event reference for this component. | Open | |
| Demo Project — Demos\05.Crypto\15.MEXC 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 |
Common questions about the MEXC API component for Delphi and C++ Builder.
TsgcWebSocketClient and a TsgcWSAPI_MEXC component on your form, assign the client to the API component's Client property, set MEXC.ApiKey and MEXC.ApiSecret if you need the account stream, then set WSClient.Active := True and call subscribe methods such as SubscribeDeals, SubscribeDepth or SubscribeKLine.TsgcWSAPI_MEXC component targets the MEXC spot WebSocket API. It decodes the Protobuf-encoded market streams (deals, kline, depth, bookTicker, miniTicker) and opens the listenKey-based account-data stream for balance, order and position updates. A TsgcWSAPI_MEXC_Futures sibling targets the MEXC futures contract gateway.MEXC.ApiKey and MEXC.ApiSecret, call StartUserDataStream to obtain a listenKey, then SubscribeListenKey opens the authenticated channel.