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title Solana Data Streaming
sidebarTitle Overview
description Stream real-time Solana blocks, account updates, transaction data, and blockchain events. LaserStream gRPC, Enhanced WebSockets, and Webhooks solutions.

What is data streaming on Solana?

Data streaming allows applications to receive real-time updates from the Solana blockchain as events occur on-chain. Instead of repeatedly polling for updates, streaming establishes persistent connections that push data to your application instantly when transactions are processed, accounts change, or blocks are produced.

This is essential for applications that require up-to-the-second data such as:

  • Trading applications monitoring price changes and liquidations
  • DeFi protocols tracking user interactions and state changes
  • NFT marketplaces detecting sales, listings, and transfers
  • Analytics platforms collecting comprehensive blockchain metrics
  • Wallets showing real-time balance and transaction updates

Why choose Helius for data streaming?

Direct connections to Solana leaders ensure sub-second data delivery Multi-node redundancy and automatic failover for 99.9% uptime Never miss data with automatic backfill capabilities Endpoints in multiple regions for optimal performance worldwide

Helius Streaming Solutions

We offer multiple streaming options to match your app's specific needs, from simple WebSocket connections to ultra-low latency raw data streaming for HFTs.

Shred Delivery (Beta)

Shred Delivery is a specialized, ultra-low latency feed of raw Solana shreds delivered via UDP. Requires deshredding capabilities.

Key Features

  • Earliest Access: Raw shreds delivered as they're produced by the network
  • Unprocessed Data: Raw format allows for custom processing tailored to your trading strategies
  • Validator Advantage: Helius is a top validator by stake and receives shreds faster than validators with less stake and non-staked RPC nodes
  • White Glove Provisioning: Managed access with dedicated engineering support
  • Beta Access Only: Currently limited to qualified teams and HFTs

Best For

Raw shreds are ideal for latency-critical strategies where milliseconds determine profitability such as:

  • High-frequency trading desks
  • Arbitrage traders
  • Liquidation systems
  • MEV searchers
Interested in trying Shred Delivery? [Apply for a 2-day trial](https://www.helius.dev/shreds-contact); we review every application.

LaserStream (Developer+ Devnet, Business+ Mainnet)

LaserStream provides ultra low-latency data streaming via gRPC, and includes advanced features such as historical replay, automatic reconnects, and multi-node reliability.

Key Features

  • Turnkey: Get faster gRPC streams without the headaches of managing hardware or upgrades
  • 24-Hour Historical Replay: Automatically backfill up to 24 hours of missed data
  • Auto-Reconnection: Built-in connection management with intelligent retry logic
  • Global Endpoints: Available in 9 regions worldwide for optimal latency
  • Drop-in Replacement: Compatible with existing Yellowstone gRPC implementations

Preprocessed Transactions (Beta)

In addition to streaming processed, confirmed, and finalized data, LaserStream can also serve preprocessed transactions, or decoded shreds.

Instead of waiting for full transaction processing, LaserStream decodes transactions directly from shreds as they arrive at the validator, giving you access to transaction data milliseconds faster than standard commitment levels.

To try Preprocessed Transactions (Beta), please contact our team via Telegram or Discord.

Best For

  • Backend services
  • High-throughput applications
  • Mission-critical systems requiring guaranteed data delivery
Interested in trying LaserStream? [Apply for a 2-day trial](https://www.helius.dev/laserstream-contact); we review every application.

Enhanced WebSockets

Enhanced WSS are performance-optimized WebSockets powered by the same infrastructure that powers LaserStream. Enhanced WSS include advanced filtering, and account and transaction subscriptions.

Key Features

  • Faster Response Times: Optimized for lower latency than standard WebSockets
  • Enhanced Filtering: Advanced subscription options for precise data targeting
  • Account & Transaction Subscriptions: Monitor specific accounts or transaction patterns
  • Next-gen Infrastructure: Powered by the same high-performance streaming backend thats used by LaserStream

Best For

Real-time frontend apps, moderate-volume backends, custom filtering requirements

Standard WebSockets

Standard Solana WebSocket API enhanced with Helius infrastructure reliability.

Key Features

  • Full Compatibility: Works with any Solana WebSocket client library
  • Standard Methods: All supported Solana subscription types (accounts, programs, logs, signatures, slots)
  • Multiple Networks: Available on mainnet and devnet
  • Helius Reliability: Enhanced uptime and performance over standard RPC nodes

Best For

Existing applications, standard use cases, broad compatibility requirements

Webhooks

Event-driven, server-to-server webhook notifications for on-chain activities delivered to your endpoints.

Key Features

  • Parsed Event Data: Human-readable transaction data for sales, swaps, and more
  • Multiple Types: Enhanced, raw, and Discord webhook options
  • Transaction Filtering: Subscribe to specific event types and addresses
  • Reliable Delivery: Automatic retries and delivery confirmations

Best For

Event-driven architectures, notifications, integrations with external services

Getting Started

Select the streaming method that best fits your app requirements and infra. Sign up at [dashboard.helius.dev](https://dashboard.helius.dev) and obtain your API key. Each solution has dedicated quickstart guides and code examples. Use the Helius dashboard to monitor usage and scale your plan as needed. Get up and running with your first streaming connection in minutes

Support & Community

Comprehensive API references and guides for all streaming methods Join thousands of developers building on Solana with Helius Priority support channels for business and professional customers

Ready to start streaming Solana data?

Choose your preferred method above and dive into the documentation!