Helius is a blockchain data infrastructure platform that provides advanced APIs and tools for querying, analyzing, and interacting with data on the Solana blockchain. The platform is designed to help developers build powerful and data-driven decentralized applications (dApps) on Solana by offering real-time data access, historical data querying, and on-chain analytics. Helius also supports features like WebSocket streaming for live updates, making it easier for developers to create responsive and interactive dApps. The platform's API services are highly scalable, ensuring that even the most demanding applications can handle large volumes of data. Helius is particularly popular among developers in the Solana ecosystem who need reliable and efficient access to blockchain data for their projects.