Solana Data Streaming

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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?

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Helius Streaming Solutions

We offer multiple streaming options to match your application’s specific needs, from simple WebSocket connections to enterprise-grade streaming infrastructure.

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LaserStream (Professional+)

Next-generation streaming with advanced features

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

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

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

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

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Support & Community

Ready to start streaming Solana data? Choose your preferred method above and dive into the documentation!