api-reference.mdx

title	Solana API Reference: Complete List
sidebarTitle	Overview
description	Comprehensive Solana blockchain APIs including RPC, DAS, webhooks, and data streaming. Complete reference for developers building on Solana with Helius.

Solana RPC APIs

Land transactions effectively, query blockchain data instantly, and benefit from enhanced reliability and performance. Create responsive applications by subscribing to real-time blockchain events. Eliminate polling and reduce latency in your user interfaces.

Token & Transaction APIs

Access standardized token and NFT metadata with a single API call. Handles both regular and compressed NFTs automatically. Get recommended transaction fees based on current network conditions. Prevent timeouts and ensure timely confirmation of your transactions. Retrieve pre-parsed transaction data in human-readable format. Save development time with structured information ready for display. Dramatically reduce account storage costs by up to 98% for on-chain data.

Data Streaming APIs

Stream blockchain data with ultra-low latency using lightweight clients. Apply custom filters to receive only the updates relevant to your application. Subscribe to real-time transaction events with custom filters. Monitor specific accounts and receive instant notifications via WebSocket. Configure instant notifications for blockchain events sent directly to your application. Eliminate the need for constant polling while maintaining data currency.