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Billing and Rate Limits

WebSocket events do not consume credits. Both standard WebSockets and Enhanced WebSockets are included with your plan without additional credit costs.
Enhanced WebSockets are, on average, 1.5x - 2x faster than standard WebSockets. They provide faster response times through optimized infrastructure and direct access to Helius’s streaming backend, making them ideal for high-performance applications requiring low-latency data.

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Disconnects and Retries

Enhanced WebSockets have a 10-minute inactivity timer that disconnects idle connections. To prevent disconnections:
  1. Implement health checks: Send pings every minute to keep connections alive
  2. Add reconnection logic: Automatically reconnect when disconnections occur
  3. Use proper connection management: Follow the patterns shown in our Enhanced WebSockets documentation
Implement reconnection and ping logic as shown in our documentation, then add your application logic on top of this foundation.

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Using WebSockets

For Enhanced WebSockets, set transactionDetails: "full" in your subscription options:
const subscriptionRequest = {
  jsonrpc: "2.0",
  id: 1,
  method: "transactionSubscribe",
  params: [
    {
      accountInclude: ["YOUR_ACCOUNT_ADDRESS"],
      failed: false,
      vote: false
    },
    {
      commitment: "confirmed",
      encoding: "jsonParsed",
      transactionDetails: "full",  // Full transaction details
      maxSupportedTransactionVersion: 0
    }
  ]
};
For Standard WebSockets, use logsSubscribe or signatureSubscribe methods depending on your monitoring needs. See our WebSocket guide for detailed examples of each subscription type.

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