Helius API — Enhanced Solana RPC Helius extends standard Solana RPC with parsed transaction history, a unified Digital Asset Standard (DAS) API, webhooks, and priority fee estimation. Essential for wallet analysis, token metadata, and transaction monitoring. Quick Start 1. Get an API Key Sign up at dashboard.helius.dev — free tier available (1M credits/mo, no card required). 2. Install Dependencies 3. Two Base URLs Helius uses different base URLs depending on the API: | API | Base URL | Protocol | |-----|----------|----------| | RPC / DAS / Priority Fees | | JSON-RPC 2.0 | | Enhanced Transact…