Verified OTP via WhatsApp — Fast. Trusted. Familiar.
Deliver one-time passwords to your users via WhatsApp using a verified business sender name. Start today with 100 free verifications.
Why Choose WhatsApp OTP
Deliver verification codes through the channel your users already trust and use daily.
Verified Business Sender
Deliver OTPs from a verified WhatsApp Business sender name your users trust.
Local & International Delivery
Reach users globally without per-country SMS routing complexity.
Branded Message Templates
Use pre-approved WhatsApp Business API templates for branded, compliant messaging.
Track Delivery & Engagement
Real-time delivery status and read receipts for full visibility.
End-to-End Encryption
Every OTP message is protected by WhatsApp's end-to-end encryption.
Simple Integration & Fallback
Easy API integration with automatic fallback to SMS if WhatsApp is unavailable.
Still Using Only SMS?
Users prefer WhatsApp for verification — it's fast, secure, and part of their daily habits. Meet them where they are.
Meet Them Where They Are
WhatsApp is the #1 messaging app globally. Your users are already there — verify them without friction.
Stay Compliant
Pre-approved templates and verified business sender names ensure every message meets WhatsApp's compliance standards.
Higher Conversion
98% open rates mean more users complete verification on the first attempt, reducing drop-off.
Automatic Fallback
If WhatsApp delivery fails, Authentica automatically falls back to SMS — zero user friction.
How It Works
Launch in minutes. Get started via our developer-friendly API and intuitive dashboard. No long setup. No friction.
Sign Up
Create your account on Authentica and get 100 free verifications.
Send via API
Choose WhatsApp as your delivery channel with a single API call.
Monitor Performance
Access real-time reports and delivery logs with read receipts.
What Our Customers Say
“We made WhatsApp our main channel. Authentica made integration effortless.”
“User experience drastically improved after switching to WhatsApp OTP with Authentica.”
“Integration was fast, and the support team was responsive. Great onboarding flow.”
Ready to Enable WhatsApp OTP?
Smarter, safer user verification. Quick to set up. Built to grow. Start with 100 free verifications — no credit card required.