> ## Documentation Index
> Fetch the complete documentation index at: https://www.helius.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Data Streaming API Reference

> API reference for Helius real-time Solana data streaming through LaserStream gRPC, WebSockets, Parsed Streams, and webhooks.

Choose a streaming interface based on your transport and data requirements.

<CardGroup cols={2}>
  <Card title="LaserStream gRPC" icon="bolt" href="/docs/api-reference/laserstream-grpc">
    Stream accounts, transactions, blocks, and slots with historical replay.
  </Card>

  <Card title="LaserStream WebSocket" icon="signal-stream" href="/docs/api-reference/rpc/websocket-methods">
    Use standard Solana subscriptions and Helius WebSocket extensions.
  </Card>

  <Card title="Parsed Streams" icon="wave-square" href="/docs/api-reference/parsed-streams/overview">
    Receive decoded Solana transactions with server-side filtering.
  </Card>

  <Card title="Webhooks" icon="webhook" href="/docs/api-reference/webhooks">
    Deliver real-time blockchain events to an HTTP endpoint.
  </Card>
</CardGroup>


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