Facebookpixel Check if a number is on WhatsApp – WhatsApp Check Number - SMSMobileAPI

WhatsApp Number Availability Checker

Easily verify if a phone number is available on WhatsApp using our stable and high-performance API.
Unlike other free verifiers, our system uses secure API key authentication for accurate and reliable results.
Check out our full API documentation here to learn how to send verification requests easily!

Don't have an API key yet ?
Create a free WhatsApp account to get started!

Enter the phone number starting with the country code (without ‘+’ and without ‘00’)
followed directly by the rest of your number.
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