🔐 OTP Service

WhatsApp OTP – Send OTP via WhatsApp

Deliver one-time passwords and verification codes instantly via WhatsApp. Higher open rates, faster verification, and better user experience than SMS or email OTP.

OTP Delivery

Why WhatsApp OTP?

WhatsApp OTP delivery offers superior open rates (98%+) compared to SMS (80%) and email (20%). Messages are delivered instantly, appear in a familiar interface, and users are more likely to trust and act on WhatsApp messages.

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Instant Delivery

OTP delivered in under 2 seconds on average

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98% Open Rate

Far higher than SMS or email alternatives

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Cost Effective

Lower cost per OTP compared to SMS gateways

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Secure

End-to-end encrypted OTP delivery via WhatsApp

💬 Set Up WhatsApp OTP

How It Works

OTP Flow

User Requests OTP

User enters phone number on your login or signup page.

API Sends OTP

Postabi API delivers OTP code via WhatsApp instantly.

User Verifies

User enters OTP code on your site and gains access.

Use Cases

OTP Use Cases

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User Login

Passwordless login via WhatsApp OTP for secure authentication.

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Registration

Verify new user phone numbers during account registration.

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Transactions

Confirm high-value transactions with OTP verification.

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Password Reset

Secure password reset flows with WhatsApp OTP.

Get Started

Ready to Send OTP via WhatsApp?

Integrate WhatsApp OTP delivery into your application today. Web API from Rs.3,000/month. Simple API, instant delivery, higher conversion.

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