Blocknative SDK

A lightweight JavaScript/TypeScript SDK (v4.6.9+, semver) that connects to Blocknative's Ethereum backend via WebSocket to provide real-time transaction monitoring and address notifications. It supports both Node.js and browser environments, requires an API key, and ships with TypeScript types. Key differentiators: uses Blocknative's prediction engine for early tx status (pending, confirmed, failed), event-based architecture (txPool, txConfirmed, all), and an account watcher. Alternatives like ethers.js or web3.js only provide lower-level event polling.