Laserstream is currently in private beta and not yet publicly available. Access is limited, and some features may still be under development.

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What is LaserStream?

LaserStream is a next-generation streaming service purpose-built for developers who need reliable, real-time Solana data. It delivers on-chain events (transactions, slots, blocks, accounts, and more) directly to your application with industry-leading reliability, performance, and flexibility.

Unlike standard Solana RPC nodes, LaserStream is specifically designed for streaming use cases, offering features not available in conventional node setups:

Historical Replay

Automatically backfill missed data by specifying a starting slot, ensuring data continuity even after disconnections.

Multi-Node Reliability

Stream from multiple aggregated nodes simultaneously, eliminating single points of failure and ensuring maximum uptime.

High Performance

Purpose-built for streaming with optimized connection handling, reducing latency and improving throughput compared to standard connections.

Protocol Flexibility

Choose your preferred protocol to match your application’s needs and environment requirements.

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Easy Migration

Drop-in Replacement: LaserStream is designed as a seamless drop-in replacement for your existing gRPC setup. Simply change your endpoint and API token, and your application will work with LaserStream immediately.

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Using Existing gRPC Code

If you already use Yellowstone gRPC, migrating to LaserStream is as simple as:

// Before: Using standard Yellowstone gRPC
const connection = new GeyserConnection(
  "your-current-endpoint.com",
  { token: "your-current-token" }
);

// After: Using LaserStream (just change endpoint and token)
const connection = new GeyserConnection(
  "laserstream-endpoint.helius.xyz",
  { token: "your-helius-api-key" }
);

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Enhanced Experience with the LaserStream SDK

While LaserStream works with your existing code, we highly recommend using our LaserStream SDK for enhanced capabilities:

// Using the dedicated LaserStream SDK
import { subscribe, CommitmentLevel, LaserstreamConfig } from 'helius-laserstream';

const config = {
  apiKey: "your-helius-api-key",
  endpoint: "laserstream-endpoint.helius.xyz"
};

// The SDK automatically handles:
// - Connection management
// - Reconnection with backoff
// - Historical replay after disconnects
// - Subscription management
await subscribe(config, subscriptionRequest, handleData, handleError);

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Key Features

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Automatic Reconnection & Catch-up

The LaserStream SDK automatically handles dropped connections, network issues, and data gaps. When a reconnection occurs, the SDK automatically:

  • Reestablishes the connection with minimal delay
  • Requests any data that was missed during the disconnection period
  • Continues streaming without intervention
  • Implements exponential backoff for unstable connections

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Multi-Protocol Support

LaserStream is designed with multi-protocol support in mind:

ProtocolStatusBest ForFeaturesImplementation
gRPC✅ AvailableBackend services, high-throughput applicationsHighest performance, binary protocol, bi-directional streamingVia LaserStream SDK or Yellowstone
WebSocket🔜 Coming soonFrontend applications, browser clientsJSON-based, widely supported in browsers, familiar for web developersStandard WebSocket clients (e.g., ws library)

WebSocket support is coming soon! Currently, LaserStream is available only via gRPC. WebSocket integration is under active development and will be available in a future update.

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Advanced Filtering

LaserStream supports sophisticated filtering options:

  • Account Filtering: Include, exclude, or require specific accounts
  • Transaction Types: Filter by transaction status, vote transactions, etc.
  • Commitment Levels: Choose from processed, confirmed, or finalized
  • Data Content: Request specific data fields or full data

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Extreme Scalability

  • Load Balancing: Connections distributed across multiple nodes
  • Auto-scaling: Backend resources scale to match demand
  • Efficient Routing: Requests automatically routed to the most responsive node

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Getting Started

gRPC

High-performance streaming optimized for backend services and high-throughput applications

For applications that need to catch up on historical data or implement fault-tolerant connections:

Historical Replay

Learn how to implement historical replay to ensure data continuity

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When to Use LaserStream vs. Other Solana Streaming Options

FeatureLaserStreamStandard Solana RPCYellowstone gRPC
Historical replay✅ Up to 3000 slots (approx. 20 minutes)❌ Not available❌ Limited
Auto-reconnect✅ Built-in❌ Manual implementation❌ Manual implementation
Multi-node failover✅ Automatic❌ Manual implementation❌ Manual implementation
WebSocket support🔜 Coming soon✅ Standard❌ Not available
gRPC support✅ Enhanced❌ Not available✅ Standard
Setup complexityLowHighMedium
Infrastructure managementNone (fully managed)HighMedium

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Next Steps

For more information or to request access to the LaserStream private beta, join the discussion on our Discord or Telegram.