At the moment, Clickatell does not offer an API to check whether a phone number is WhatsApp enabled or not. We will, however, perform a check on your behalf before attempting to send a message from your business to the end-user. If the number is not enabled, we will fail that message and return an error code to you.
SMS and two-way channels, automation, call center integration, payments – do it all with Clickatell’s Chat Commerce platform.