For new development, we encourage you to use the Verify API instead of the Authy API. The Verify API is an evolution of the Authy API with continued support for SMS, voice, and email one-time passcodes, an improved developer experience, and new features including:
- Access via the Twilio CLI.
- Improved visibility and insights.
- A push authentication SDK embeddable in your own application.
Step 3: Copy the last number in the url. That number is the APP_ID which will be used for communications againts the Authy API