Coin Lab – Real-Time Crypto Trade Dashboard | Live Multi-Exchange Data

ABOUT COIN LAB

What is Coin Lab?

Coin Lab is a free, real-time crypto trade dashboard. It streams live spot trades over a WebSocket connection and lays them out in independent, draggable, resizable windows — so you can watch several symbols and value ranges side by side, live, with no page refresh.

Exchanges covered

Trades are aggregated live from major centralized exchanges such as Binance and other leading spot venues — every trade row shows exactly which exchange it came from, so nothing is blended or hidden.

Core features

Track any symbol you type in, not just BTC. Create as many windows as you want, each filtered by a custom minimum/maximum USDT trade value. Filter every window by buy or sell side, drag windows to reorder them, resize them freely, and your whole layout is remembered automatically for next time.

Who it's for

Traders, researchers, and anyone who wants an at-a-glance, real-time feel for spot market activity — large trades, buy/sell pressure, and multi-exchange flow — without paying for a terminal.

WEBSOCKET DOCUMENTATION

LIVE —

Connection

Connect to the WebSocket server, then authenticate. Authenticating subscribes you to a starting symbol (defaults to BTC); after that, send subscribe / unsubscribe messages to add or remove coins.

// 1. Open connection
const ws = new WebSocket(WS_URL);

// 2. Authenticate on open (starting symbol optional, default BTC)
ws.onopen = () => ws.send(JSON.stringify({ type: 'authenticate', symbol: 'BTC' }));

// 3. Subscribe to additional symbols any time
ws.send(JSON.stringify({ type: 'subscribe', instrument: 'ETH' }));

// 4. Unsubscribe when no longer needed
ws.send(JSON.stringify({ type: 'unsubscribe', instrument: 'ETH' }));

Incoming Message — trade event

For each subscribed symbol the server streams real-time trades across exchanges. Each message has this shape:

{
  "type": "trade",
  "exchange": "BINANCE",         // exchange name
  "instId": "ETH",             // symbol this trade belongs to
  "side": "buy",               // "buy" | "sell"
  "valueUSDT": 48291.50,         // trade value in USDT
  "USDTPrice": 3245.10,          // price at execution
  "timestamp": 1719000000000     // Unix ms timestamp
}

Handling messages

ws.onmessage = (event) => {
  let msg;
  try { msg = JSON.parse(event.data); } catch { return; }

  if (msg.type === 'trade') {
    console.log(msg.instId, msg.exchange, msg.side, '$' + msg.valueUSDT);
  }
};

Error & reconnect pattern

ws.onerror = (err) => console.error('WS error', err);

ws.onclose = () => {
  // Reconnect after 3 s, then re-subscribe to active symbols
  setTimeout(connect, 3000);
};

Notes

• Send one authenticate, then any number of subscribe messages — one per symbol.
• The server pushes data continuously — no polling needed.
• Each window in this dashboard filters the live stream by symbol and an optional USDT value range.

COIN LAB

Real-time crypto spot data · multi-symbol

X / TWITTER SUPPORT PROJECT

Total Trades

0

● LIVE

Total Volume

$0

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Avg Trade Size

$0

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Buy / Sell

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Symbols

New Window