Authy is a 2-factor authentication (2FA) platform that provides a simple and secure way for developers to add 2FA to their applications. With Authy, users can receive verification codes via SMS or voice calls, making it easy to implement 2FA in NodeJS applications. The platform offers various features such as push notifications, app-agnostic TOTP, and scalable infrastructure, making it suitable for startups and multinationals alike. By integrating Authy into a NodeJS application, developers can enhance security while reducing the complexity of implementing 2FA. The platform is evolving towards the Verify API, which provides improved developer experience, new features, and better support for SMS, voice, and email one-time passcodes.