Stream Live Trades & Transactions

The Datastream WebSocket delivers swap transactions for any token in real time, milliseconds after they are recorded on Solana. One connection and one room give your handler every buy and sell as it happens.

URL: wss://datastream.solanatracker.io/{apiKey}
Available on Premium, Business, and Enterprise plans.

Join the transaction:{tokenAddress} room to receive all swaps for a token:

const token = "6p6xgHyF7AeE6TZkSmFsko444wqoP15icUSqi2jfGiPN";
const ws = new WebSocket("wss://datastream.solanatracker.io/YOUR_API_KEY");

ws.onopen = () => {
  ws.send(JSON.stringify({ type: "join", room: `transaction:${token}` }));
};

ws.onmessage = (event) => {
  const msg = JSON.parse(event.data);
  if (msg.type !== "message") return;

  // msg.data is an array of transactions
  msg.data.forEach(tx => {
    const side  = tx.type === "buy" ? "BUY " : "SELL";
    const usd   = tx.volume.toFixed(2);
    const price = tx.priceUsd.toFixed(6);
    console.log(`${side} $${usd} @ $${price} — ${tx.wallet.slice(0, 8)}... via ${tx.program}`);
  });
};

Transaction payload:

{
  "tx": "5V4apVkgHf49J5acYPiuh5rB89EGsF8ocSysgnD9vFfZsTtDamhN3MFDKJSq7Dn7Z6Y5XhjghuVYuvvYWnSFpnvW",
  "amount": 90,
  "priceUsd": 6.002467911111111,
  "solVolume": 2.956,
  "volume": 540.22,
  "type": "sell",
  "wallet": "F7R61te4Ac8xZ4pfkJUdF6iaaHy9tnM8nVRUPv8H8EMi",
  "time": 1760201288835,
  "program": "raydium",
  "token": {
    "from": { "name": "OFFICIAL TRUMP", "symbol": "TRUMP", "amount": 90 },
    "to":   { "name": "USD Coin",        "symbol": "USDC",  "amount": 540.22 }
  }
}

Whale Alerts

Filter incoming trades by USD volume to fire a whale alert when a large buy or sell hits:

const WHALE_THRESHOLD_USD = 10000; // $10k+

ws.onmessage = (event) => {
  const msg = JSON.parse(event.data);
  if (msg.type !== "message") return;

  msg.data.forEach(tx => {
    if (tx.volume >= WHALE_THRESHOLD_USD) {
      const side = tx.type === "buy" ? "🟢 WHALE BUY" : "🔴 WHALE SELL";
      console.log(`${side} — $${tx.volume.toLocaleString()} by ${tx.wallet}`);
      // trigger your alert: push notification, Discord webhook, etc.
    }
  });
};

Detect Sniper Buys at Launch

When a new token launches, the first few transactions often come from sniper bots. These are automated wallets that buy in the first seconds. Watch for early buys with large USD sizes relative to the token’s age:

let launchTime = null; // First message sets the starting time.
const SNIPER_WINDOW_MS = 10_000; // first 10 seconds

ws.onmessage = (event) => {
  const msg = JSON.parse(event.data);
  if (msg.type !== "message") return;

  msg.data.forEach(tx => {
    if (!launchTime) launchTime = tx.time;

    const ageMs = tx.time - launchTime;
    const isEarly = ageMs < SNIPER_WINDOW_MS;

    if (isEarly && tx.type === "buy") {
      console.log(`🎯 Early buy (${(ageMs / 1000).toFixed(1)}s after launch)`);
      console.log(`   Wallet: ${tx.wallet}`);
      console.log(`   Amount: $${tx.volume.toFixed(2)}`);
    }
  });
};

Copy-Trading Trigger

Watch for trades from specific wallets (KOLs, whales, traders you follow) and trigger a copy trade when they buy:

// Wallets you want to copy-trade
const WATCHED_WALLETS = new Set([
  "FV1r15rbNKkJanXLheoJA7fXEq6NDuMJ3bukXuhJWyV1",
  "4Rz5xqikxtZ2s7wE9uQ6n2oLXQi6K65XGoYpKxf24Hqo"
]);

ws.onmessage = (event) => {
  const msg = JSON.parse(event.data);
  if (msg.type !== "message") return;

  msg.data.forEach(tx => {
    if (WATCHED_WALLETS.has(tx.wallet) && tx.type === "buy") {
      console.log(`📡 Copy-trade trigger: ${tx.wallet.slice(0, 8)}... bought $${tx.volume.toFixed(2)}`);
      // → call your swap API here
    }
  });
};

Full Live Trade Feed with Reconnect

Production-ready feed with auto-reconnect and clean shutdown:

function startTradeFeed(token, onTrade) {
  let ws;
  let reconnectTimeout;

  function connect() {
    ws = new WebSocket("wss://datastream.solanatracker.io/YOUR_API_KEY");

    ws.onopen = () => {
      console.log(`Subscribed to trades for ${token}`);
      ws.send(JSON.stringify({ type: "join", room: `transaction:${token}` }));
    };

    ws.onmessage = (event) => {
      const msg = JSON.parse(event.data);
      if (msg.type === "message") {
        msg.data.forEach(onTrade);
      }
    };

    ws.onclose = () => {
      console.log("Disconnected — reconnecting in 3s");
      reconnectTimeout = setTimeout(connect, 3000);
    };

    ws.onerror = (err) => {
      console.error("Stream error:", err.message);
      ws.close();
    };
  }

  connect();

  return () => {
    clearTimeout(reconnectTimeout);
    ws?.close();
  };
}

// Usage
const stop = startTradeFeed(
  "6p6xgHyF7AeE6TZkSmFsko444wqoP15icUSqi2jfGiPN",
  (tx) => {
    const side = tx.type === "buy" ? "BUY " : "SELL";
    console.log(`${side} $${tx.volume.toFixed(2)} — ${tx.wallet.slice(0, 8)}...`);
  }
);

// Stop later: stop()

Transaction Fields Reference

Field	Type	Description
`tx`	string	Transaction signature
`type`	`"buy"` \| `"sell"`	Trade direction
`volume`	number	Trade size in USD
`solVolume`	number	Trade size in SOL
`priceUsd`	number	Token price at time of trade
`amount`	number	Token amount traded
`wallet`	string	Trader’s wallet address
`time`	number	Unix timestamp (ms)
`program`	string	DEX used (`raydium`, `pumpfun`, `okx`, etc.)
`token.from`	object	Token sold
`token.to`	object	Token received

Sniper & Bundler Detection — identify sniper wallets from historical data
Wallet Tracking — track all trades across every token for a wallet
KOL Tracking — find top traders and build copy-trading feeds
Live Prices & Charts — stream price updates alongside trade data

Overview

Token Data

Security & Analytics

Wallet & Portfolio

PnL V2

Live Streaming

Solana RPC

Trading

Stream Live Trades & Transactions

Whale Alerts

Detect Sniper Buys at Launch

Copy-Trading Trigger

Full Live Trade Feed with Reconnect

Transaction Fields Reference

​Subscribe to a Token’s Trades

​Whale Alerts

​Detect Sniper Buys at Launch

​Copy-Trading Trigger

​Full Live Trade Feed with Reconnect

​Transaction Fields Reference

​Related Guides

Subscribe to a Token’s Trades

Whale Alerts

Detect Sniper Buys at Launch

Copy-Trading Trigger

Full Live Trade Feed with Reconnect

Transaction Fields Reference

Related Guides