Why Stellar Transaction Monitoring Matters

What You Can Monitor

LumenQuery decodes and surfaces every operation type on the Stellar network, giving you human-readable transaction data instead of raw XDR blobs.

Who Uses Stellar Transaction Monitoring

From wallet teams tracking user balances to compliance officers screening for suspicious patterns, transaction monitoring is essential across the Stellar ecosystem.

Configurable Alert Examples

Define rules that trigger alerts when specific conditions are met. Alerts are delivered via email, Slack, or webhooks so your team can respond immediately.

How LumenQuery Monitoring Works

Stream Transactions with SSE

Connect to the real-time transaction stream and receive decoded operations as they are confirmed on the Stellar network.

// Connect to LumenQuery's SSE transaction stream
const eventSource = new EventSource(
  'https://lumenquery.io/api/transactions/stream'
);

eventSource.onmessage = (event) => {
  const tx = JSON.parse(event.data);

  console.log('Transaction:', tx.hash);
  console.log('Ledger:', tx.ledger);
  console.log('Operations:');

  tx.operations.forEach((op) => {
    // Human-readable descriptions, not raw XDR
    console.log(' -', op.description);
    // e.g. "Payment of 1,500 XLM from GAXJ...ABC to GBCD...XYZ"
  });
};

eventSource.onerror = () => {
  console.error('Stream disconnected, reconnecting...');
};

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Frequently Asked Questions