Two-factor authentication with ClickSend voice calls and email verification

N8N Workflow: Send and Check TTS (Text-to-speech) Voice Calls with Email Verification

This workflow automates a two-factor verification process using a voice call and an email. It is designed to send a text-to-speech (TTS) voice call with a verification code and, upon successful voice verification, to send an email with a second verification code.

How it Works

This workflow automates the process of sending voice calls for verification and combines it with email verification. It uses the ClickSend API for the voice call and an SMTP integration for sending the email.

Use Cases

- Two-factor authentication (2FA) for user registration or login. - Automated verification for phone numbers and email addresses. - Building a custom verification system for web applications.

Setup Instructions

1. ClickSend API: Register on ClickSend and obtain your API Key. In the Send Voice node, create a Basic Auth credential using your ClickSend username and API Key as the password.