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    Solana RPC APIs
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    • Digital Asset Standard (DAS)
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    Data Streaming APIs
    • LaserStream gRPC
    Event Listening APIs
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    Deprecated APIs
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    LaserStream and Sender are now live! Experience ultra-fast data streaming and optimized transaction sending. Learn about LaserStream | Learn about Sender

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    API Reference

    Solana API Reference

    Comprehensive Solana blockchain APIs including RPC, DAS, webhooks, and data streaming. Complete reference for developers building on Solana with Helius.

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    Solana RPC APIs

    HTTP Methods

    Land transactions effectively, query blockchain data instantly, and benefit from enhanced reliability and performance.

    WebSocket Methods

    Create responsive applications by subscribing to real-time blockchain events. Eliminate polling and reduce latency in your user interfaces.

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    Token & Transaction APIs

    Digital Asset Standard (DAS)

    Access standardized token and NFT metadata with a single API call. Handles both regular and compressed NFTs automatically.

    Priority Fee API

    Get recommended transaction fees based on current network conditions. Prevent timeouts and ensure timely confirmation of your transactions.

    Enhanced Transactions

    Retrieve pre-parsed transaction data in human-readable format. Save development time with structured information ready for display.

    ZK Compression

    Dramatically reduce account storage costs by up to 98% for on-chain data.

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    Data Streaming APIs

    LaserStream gRPC

    Stream blockchain data with ultra-low latency using lightweight clients. Apply custom filters to receive only the updates relevant to your application.

    Webhooks

    Configure instant notifications for blockchain events sent directly to your application. Eliminate the need for constant polling while maintaining data currency.

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