node-auth0

auth0 (node-auth0) is the official Node.js SDK for the Auth0 identity platform. It bundles typed clients for Auth0’s Authentication API, Management API, and UserInfo endpoint, letting back-end services handle login flows, issue and exchange tokens, manage users, connections, and tenant configuration without hand-rolling HTTP calls.

Built with Fern and shipped in TypeScript, the SDK exposes ergonomic client classes configured with your tenant domain and credentials. It supports client-credentials flows, custom domains, and a legacy compatibility export for teams migrating from earlier v4.x releases, making it the standard way to integrate Auth0 from Node applications.

What You Get

• AuthenticationClient for login, token exchange, and Authentication API operations
• ManagementClient covering the full Auth0 Management API for administrative tasks
• UserInfoClient for retrieving user profile information from an access token
• Full TypeScript typings generated from Auth0’s API definitions
• A legacy export for compatibility with the previous node-auth0 v4.x interface

Common Use Cases

• Authenticating users and exchanging tokens from a Node.js backend
• Programmatically managing Auth0 users, roles, and connections
• Automating tenant configuration and administrative tasks
• Retrieving user profiles from Auth0 access tokens

Under The Hood

Architecture — The src/ tree separates the SDK into auth/ (AuthenticationClient), management/ (ManagementClient), and userinfo/ (UserInfoClient), with shared plumbing in lib/ and utils.ts and a barrel index.ts. Each client is configured with a tenant domain plus credentials and maps API resources to typed methods; the code is largely generated with Fern from Auth0’s API definitions, keeping the surface consistent across releases.

Tech Stack — TypeScript, compiled to both ESM and CJS builds. Runtime dependencies are minimal: jose for JWT/JWK handling, uuid for identifiers, and an aliased auth0-legacy package that re-exports the v4.x interface under /legacy.

Code Quality — The repo has Codecov integration, lint/format scripts, and dedicated migration guides, reflecting a mature, well-maintained SDK. Generated clients ensure uniform error handling and typing across the large Management API surface.

API Design — Getting started is a few lines: instantiate the relevant client with domain and credentials, then call async methods. Splitting Authentication, Management, and UserInfo into distinct clients keeps concerns clear, and full TypeScript types make endpoint parameters discoverable.