Helius

Helius is a Solana-focused infrastructure and developer platform founded in 2022. Built by a team with deep protocol expertise, it provides the tools and services developers, traders, exchanges, wallets, and fintech companies use to build and operate crypto applications. Its unified platform combines high-performance RPC access, real-time data, and transaction delivery, helping teams detect onchain activity, execute transactions, and reduce infrastructure work. Helius says it processes billions of daily requests with 99.99% uptime and serves teams including Phantom, Jupiter, DFlow, Coinbase, and Bitwise.

Products include globally distributed Solana RPC nodes, archival data access, and Sender, a transaction delivery service designed to land trades reliably. LaserStream streams blocks, transactions, and account updates through gRPC, while WebSockets and webhooks deliver onchain events. Helius also offers parsed event streams, historical data, token and digital asset APIs, and a beta wallet API. Additional services include preconfirmation feeds, raw shred delivery, validator infrastructure and monetization, and privacy tools for Solana applications. Resources include developer documentation, an explorer, RPC benchmarks, staking tools, and startup support.