WhatsApp OTP APIverification codes and notifications from your own number
Send login and sign-up codes, order updates and reminders on WhatsApp from your own business number. Two API calls for codes, approved templates for notifications, and Chatmizer adds nothing per code.
Send codes on WhatsAppWhat it does
Codes from your own number
Verification codes arrive from your WhatsApp Business number with a Copy code button, so customers trust the sender and finish faster.
Two calls, no code storage
Send a code with one request and check it with another. Chatmizer creates, expires and checks the code; you never store it.
Notifications that get read
Order confirmations, shipping updates and appointment reminders go out through your approved WhatsApp templates, in the customer's language.
Ready for your stack
Copy-paste snippets for cURL, Node, PHP and Python, delivery ticks in Activity and a status webhook for your server.
How it works
- 1
Connect your WhatsApp Business number and create an API key.
- 2
Paste the snippet into your sign-up, login or checkout.
- 3
Watch codes and notifications arrive, with ticks, in Activity.
Questions people ask
How much does a WhatsApp verification code cost?
Meta charges its authentication rate, set per country, to your own WhatsApp Business account. Chatmizer adds nothing per code.
Do I need a developer?
Someone who can paste a snippet into your website is enough. There are ready snippets for cURL, Node, PHP and Python, with your own address filled in.
What if the customer has no WhatsApp?
The send call tells you the code could not be delivered, so your site can fall back to email or SMS.
Can I send order and booking notifications too?
Yes. Notifications use your approved WhatsApp message templates, and each one is sent in the customer's language when you have that version.
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Send codes on WhatsAppRead the guide
- Send verification codes on WhatsApp instead of SMS
- Send and check a WhatsApp code from your website (API)
- Send order updates and scheduled reminders from your website
- Use WhatsApp codes for login, sign-up and password reset