Helius

Getting Started

1. Sign up at helius.dev — free tier gives you 100K credits/day, enough for dev and small apps.
2. Replace your Solana RPC URL with your Helius endpoint for faster, more reliable connections.
3. Try the DAS API: fetch all NFTs for a wallet in a single call, including compressed NFTs (cNFTs).
4. Set up webhooks to get notified in real-time when specific on-chain events happen (transfers, swaps, program interactions).

How Helius Powers the Ecosystem

• Jupiter, Phantom, Magic Eden — Major Solana apps use Helius RPCs for reliable transaction processing. When you swap on Jupiter or list an NFT on Magic Eden, Helius nodes are likely processing that transaction.
• Transaction landing — Helius’s priority fee API helps apps calculate the right fee for reliable transaction inclusion, critical during high-congestion periods.
• Compressed NFTs — Helius’s DAS (Digital Asset Standard) API is the standard way to read compressed NFTs on Solana, used by wallets and marketplaces.
• Solana-specific — Unlike generic RPC providers, Helius builds Solana-native features: parsed transaction history, token metadata, webhooks for program events.

Key Features

• High-performance RPC — Dedicated Solana nodes with staked connections for reliable transaction landing. Supports standard and geyser-based websocket subscriptions.
• Digital Asset API (DAS) — Fetch NFTs, compressed NFTs (cNFTs), fungible tokens, and metadata for any wallet with a single API call. The standard for Solana asset data.
• Transaction parsing — Get human-readable transaction history with decoded instructions, token transfers, and program interactions. No raw data wrangling.
• Webhooks — Real-time push notifications for any on-chain event. Monitor wallets, track swaps, watch program interactions — no polling required.
• Priority fee API — Get recommended priority fees for reliable transaction landing. Essential during network congestion.
• Free tier — 100K credits/day free, enough for development and small-scale production apps.