Question 1

What is WhatsApp OTP API?

Accepted Answer

WhatsApp OTP API lets your backend send verification messages through a connected WhatsApp session using the DNZ engine endpoint /api/send-otp.

Question 2

How do I connect my app?

Accepted Answer

Create an account, connect WhatsApp with QR, generate an API key, then call /api/send-otp from your backend with apiKey, number, and message.

Question 3

How long does setup take?

Accepted Answer

For a normal website or app, setup usually requires creating the account, connecting WhatsApp, generating an API key, and adding one backend request.

Question 4

Which languages are supported?

Accepted Answer

The API sends the message text you provide, so your backend can send Arabic, English, or any Unicode text supported by WhatsApp.

Question 5

Is there a free plan?

Accepted Answer

Yes. The current free plan is available for testing with 50 OTP messages daily, one WhatsApp session, and a 30-second minimum interval.