hyper-sdk is a high-level JavaScript SDK for the Hypercore Protocol ecosystem, providing a unified API to create and manage Hypercore, Hyperdrive, and Hyperbee instances with automatic peer discovery via Hyperswarm. It abstracts away the complexity of lower-level modules (corestore, hyperswarm, hypercore, hyperdrive, hyperbee) and offers features like DNS resolution for hyper:// URLs, persistent storage via RocksDB, and lifecycle management (suspend/resume). The SDK is designed for cross-platform use (Node.js, Electron, Pear) and includes comprehensive TypeScript type definitions. The codebase is well-structured, uses modern ES module syntax, private fields, and has a thorough test suite covering storage reuse, key/name/URL resolution, DNS caching, and peer-to-peer replication. It is actively maintained with up-to-date dependencies and zero security alerts.