nOTP authentication

Add single-click WhatsApp authentication to your app

Authenticate users without them needing to enter a code (or type anything at all). Provide delightful login experiences, speed up onboarding, and drastically reduce SMS costs with nOTP.

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nOTP in a nutshell

Click button / scan QR code. Send prepopulated message. That's it.

Challenges with OTP authentication

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Whether businesses maintain their own messaging infra or use a third-party, OTP costs quickly add up and are not scalable.

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Security gaps

While safer than passwords, SMS authentication is prone to phishing, MITM, and OTP fatigue attacks.

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OTPs depend on phone connectivity, making them unsuitable for international travel and prone to droppages.

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User fatigue

Users are growing tired of endless OTPs, weakening their perception and making users more prone to social engineering.

How WhatsApp authentication helps your app

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Accurate identity

Get the phone number tied to your users’ WhatsApp account for a trusted and verifiable identity.

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Seamless UX

Place zero cognitive load on your users. No typing in phone numbers or copy-pasting codes.

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Lower business costs

Leverage free user-initiated WhatsApp messages to reduce SMS-related expenses.

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nOTP resources

Introducing nOTP


A Primer on nOTP

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nOTP docs


nOTP Documentation

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nOTP demo site

Demo Experience

nOTP Demo Site

See for yourself >
nOTP demo video


nOTP Demo Video

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What is a one-time password (OTP)?


OTP Authentication Explained

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What Is MFA Prompt Bombing?

Learn more >

Explore other authentication methods

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Ready for liftoff?

Curious how nOTP can enhance your customer experience? Book a demo and let's chat!