This article will teach you how to secure a Node.js API by implementing two-factor authentication (2FA) system using tokens generated by Google Authenticator or Authy. The one-time passcode (OTP) can be delivered via different methods like SMS but we will use Google Authenticator or Authy to reduce the complexity of the project.

Official Dub Typescript SDK

Two-factor authentication for Node.js. Generate One-time passcode generator (HOTP/TOTP) with support for Google Authenticator.

A tool for creating Go web servers which can be embedded in iOS and Android apps.

A plugin to handle TOTP (e.g. for 2FA)

Two-factor authenticator(2FA) desktop client on MacOS/Linux/Windows/Darwin

a State-Machine reversing exercise

Simple 2FA API service built on node-red

Authentication using node.js and mongodb

Developer-friendly & type-safe TypeScript SDK specifically catered to leverage the Speakeasy API.

Three Factor Authentication System, Add an additional layer of security to the old 2FA using Facial Biometric Scan.

Nodejs Speakeasy 2 Factor Authentication

Secure Login API offering robust authentication features like Two-Factor Authentication (2FA), Google OAuth, CSRF protection, and advanced security measures to safeguard modern applications.

Developer-friendly & type-safe Python SDK specifically catered to leverage the Speakeasy API.

example project. How to implement Two-Factor Authentication in nodejs by using speakeasy

Meteor/React Starter Project

It is the backend code of an online healthcare consultaion application .

Node OTP Example with Speakeasy

ArmchairAncap's Blog

Test cases for Speakeasy Client SDK Generation