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WhatsApp OTP is a one-time password sent via a WhatsApp message to verify and authenticate an online action or event. This unique time-sensitive code is generated dynamically and must be used within a set validity period. Businesses can use it to verify signups, logins, transactions, password resets or any identity verification process.
Send OTPs instantly via WhatsApp for secure logins and new signups. Verify user numbers with fast and reliable message delivery.
Enhance password reset security with WhatsApp OTPs. Deliver time-sensitive codes instantly to verify genuine requests and block unauthorized access
Protect transactions with WhatsApp OTP API. Instantly verify payments, prevent fraud and stop unauthorized activity in real time with secure WhatsApp OTP delivery.
Add an extra layer of security by using WhatsApp OTPs as part of your 2FA process, increasing protection against unauthorized access.
Authenticate users before giving access to confidential documents, restricted content or premium services by validating them via WhatsApp OTP.
Use WhatsApp OTPs to confirm user identity before finalizing appointments, reservations or bookings. It helps minimize spam and no-shows.
Whatsapp is the most favourite app among smartphone users. WhatsApp has excellent open and read rates for the received messages.
WhatsApp delivers messages within milliseconds. WhatsApp OTPs are delivered instantly, ensuring authentication without delays.
WhatsApp OTPs are sent through a Meta-verified WhatsApp Business account, ensuring trust, brand authenticity and user confidence.
WhatsApp business Profile Include brand logo, name and display information for a professional and recognizable business brand.
Double tick tracking for seen messages. WhatsApp provides the double ticks and read receipts to confirm OTP delivery and user engagement.
WhatsApp runs on internet messaging, so OTP delivery is instant and distance-free. Reaching users anywhere in the world.
WhatsApp OTPs offer a faster, secure and globally accessible way to verify users. Delivered instantly through end-to-end encrypted messages from a Meta-verified business account, they include your official logo, display name and trusted green tick badge. With higher open rates and rich media support, Authkey ensures seamless verification and stronger authentication for your apps and websites.
With Authkey’s WhatsApp OTP platform, you can set up fallback channels like SMS or email or Voice or RCS. If a WhatsApp OTP isn’t delivered, the system automatically switches to the next channel to deliver OTP. Authkey ensures every OTP reaches users quickly and reliably.
Easily add WhatsApp OTP verification to your product with Authkey’s developer-friendly API.
Integrate WhatsApp OTP API to verify and authenticate instantly.
Test Our API in
<?php
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => "https://api.authkey.io/request?authkey=AUTHKEY&mobile=RecepientMobile&
country_code=CountryCode&wid=1234",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
));
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
Authkey ensures every WhatsApp OTP is encrypted, compliant, and delivered instantly.
Enterprise-Grade Security & Reliability
Green tick, verified logo and name.
Protects user data & privacy.
From 100 OTPs to millions
Extra security & delivery assurance
Security tested against vulnerabilities
Regardless of one or million messages you send, our SMS infrastructure will ensure you that they deliver on time.
Utilization based pricing enables you to get discounted pricing from the beginning while only paying for what you use.
We connect your messaging flow directly over 220+ carriers in 200+ countries for international delivery that is best in class.
We align you with the support and developer team. We ensure that your Authkey.io experience is smooth and successful.