Check WhatsApp Account Exists (by Full Number)

View All WhatsApp Number Validation & Profile Lookup APIs →

Lightweight existence check for a single number — returns only whether the phone number is registered on WhatsApp, without fetching profile/avatar/business details. Cheaper than a full profile lookup. When isExist=true, the response also contains a userHash that must be passed to the profile endpoints (Get Avatar / Get About / Get Business Profile / Get Presence) to authorize the heavier lookup. The backend auto-splits the country code from the full number and echoes countryCode so you can verify the split.

API Features

Real-time existence check Query live registration status to know instantly whether a number is on WhatsApp before messaging or enriching records
Issues a userHash When the number exists, returns a userHash used to authorize the profile/avatar/about/business/presence lookups
Auto country-code split Backend splits the country code from the full number and echoes countryCode so you can verify the parse
Lightweight & cheap Returns only a yes/no plus userHash; no heavy profile payload, ideal for bulk pre-checks

Live API Demo

API Response (JSON)

{}
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Use Cases

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