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One Time Password (HOTP/TOTP) library for Node.js, Deno, Bun and browsers

Encode a Cypress fixture with Protocol Buffers

A commandline Authenticator App (for Authy, Google Authenticator, Microsoft Authenticator, TOTP / 2FA / MFA / OTP, etc)

Two- / Multi- Factor Authenication (2FA / MFA) for node.js

Easy 2-Factor Integration For Node.js

A fully customizable, one-time password input component for the web built with Angular.

A node.js wrapper for the MessageBird REST API

TOTP + HOTP library, with nice utilities for handing 2FA

Create and verify cryptographically secure Time-based One-time Passwords (TOTP) using the HMAC-based One-time Password (HOTP) algorithm.

HMAC-Based One-Time Password (HOTP), and Time-Based One-Time Password (TOTP) Algorithms

NodeJS OTP implementation

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

Node.js Client SDK for Infobip APIs.

🕖 Typed library to work 2fa via Google Authenticator/Time-based TOTP/Hmac-based HOTP

React Native wrapper for Android's SMS User Consent API, ready to use in React Native apps with minimum effort

A complete Authy client with support for TOTP, OneTouch, Phone Verification and Phone Intelligence APIs

Welcome to the best and most comprehensive library for integrating payments like Apple Pay and Google Pay into your React Native app.

QR Code generator component for Svelte & SvelteKit, with no dependencies

**[Authsignal](https://www.authsignal.com) provides passwordless step up authentication (Multi-factor Authentication - MFA) that can be placed anywhere within your application. Authsignal also provides a no-code fraud risk rules engine to manage when step

The Authsignal Node.js library for server-side applications.