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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

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Why Choose Helius for Data Streaming?

Ultra-Low Latency

Direct connections to Solana leaders ensure sub-second data delivery

Enterprise Reliability

Multi-node redundancy and automatic failover for 99.9% uptime

Historical Replay

Never miss data with automatic backfill capabilities

Global Infrastructure

Endpoints in multiple regions for optimal performance worldwide

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Helius Streaming Solutions

We offer multiple streaming options to match your application’s specific needs, from simple WebSocket connections to ultra-low latency raw data streaming for algorithmic trading operations.

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Shred Delivery (Beta)

Ultra-low latency raw data streaming

Shred Delivery

Premier low-latency service delivering raw Solana shreds
 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 operates the highest staked validator on Solana, receiving shreds with the least delay
  • White Glove Provisioning: Carefully managed access with dedicated engineering support
  • Beta Access Only: Currently limited to qualified trading teams and algorithmic trading operations
Best For: High-frequency trading desks, arbitrage traders, liquidation systems, and other latency-critical strategies where milliseconds determine profitability

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LaserStream (Developer+ Devnet, Professional+ Mainnet)

Next-generation streaming with advanced features

LaserStream

High-performance streaming with gRPC protocol, historical replay, and multi-node reliability
 Key Features:
  • Historical Replay: Automatically backfill up to 3000 slots (~20 minutes) of missed data
  • Multi-Protocol Support: gRPC available now, WebSockets coming soon
  • Auto-Reconnection: Built-in connection management with intelligent retry logic
  • Global Endpoints: Available in 7+ regions worldwide for optimal latency
  • Drop-in Replacement: Compatible with existing Yellowstone gRPC implementations
Best For: Backend services, high-throughput applications, mission-critical systems requiring guaranteed data delivery

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Enhanced WebSockets (Business+)

High-performance WebSockets with advanced filtering

Enhanced WebSockets

Faster WebSocket connections with enhanced 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
  • Atlas Infrastructure: Powered by our high-performance streaming backend
Best For: Real-time frontend applications, moderate-volume backends, custom filtering requirements

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Standard WebSockets

Solana-compatible WebSocket API with Helius reliability

Standard WebSockets

Standard Solana WebSocket methods 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

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Webhooks

Event-driven notifications delivered to your endpoints

Webhooks

Server-to-server event notifications for specific on-chain activities
 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, notification systems, integrations with external services

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Getting Started

1

Choose Your Solution

Select the streaming method that best fits your application requirements and infrastructure.
2

Get Your API Key

Sign up at dashboard.helius.dev and obtain your API key.
3

Follow the Quickstart

Each solution has dedicated quickstart guides and code examples.
4

Monitor & Scale

Use the Helius dashboard to monitor usage and scale your plan as needed.

Data Streaming Quickstart

Get up and running with your first streaming connection in minutes

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Support & Community

Documentation

Comprehensive API references and guides for all streaming methods

Discord Community

Join thousands of developers building on Solana with Helius

Enterprise Support

Priority support channels for business and professional customers
Ready to start streaming Solana data? Choose your preferred method above and dive into the documentation!