Torus.js is a lightweight JavaScript/TypeScript library that abstracts communication with the Torus decentralized key‑management network. It provides promise‑based APIs (e.g., `retrieveShares` and `getPublicAddress`) that handle the network’s threshold‑based consistency checks, commit‑reveal flow, and node‑malicious‑node assumptions, enabling developers—especially Web3 and authentication projects like Web3Auth—to easily obtain users’ public addresses and secret shares from Torus nodes.