Incorporating multi-factor authentication into an application can be achieved through the use of time-based one-time (TOTP) passcodes provided by apps like Google Authenticator and Authy. This approach provides an additional layer of security for critical services by requiring users to demonstrate device possession.

API Reference

Time-Based One-Time Passcodes (TOTP) API

Implement Ethereum Wallet Authentication (e.g. Metamask)Implement Time-Based One-Time Passcodes (TOTP) via Backend API