This guide is for the @privy-io/node library. If you are looking for the deprecated @privy-io/server-auth library, please see the NodeJS guide.
In a backend JS environment, you can use the @privy-io/node library to authorize requests and manage your application from your server. This library includes helpful utilities around verifying access tokens issued by Privy and interacting with Privy’s API to query and import users, create wallets, manage invite lists, and more. Install the Privy Server SDK using your package manager of choice: 
npm install @privy-io/node@latest