FAQ
Practical answers about WhatsApp OTP API integration, keys, languages, the free plan, and production limits.
WhatsApp OTP API lets your backend send verification messages through a connected WhatsApp session using the DNZ engine endpoint /api/send-otp.
Create an account, connect WhatsApp with QR, generate an API key, then call /api/send-otp from your backend with apiKey, number, and message.
For a normal website or app, setup usually requires creating the account, connecting WhatsApp, generating an API key, and adding one backend request.
The API sends the message text you provide, so your backend can send Arabic, English, or any Unicode text supported by WhatsApp.
Yes. The current free plan is available for testing with 50 OTP messages daily, one WhatsApp session, and a 30-second minimum interval.