WhatsApp Business account check

Check if a number is a WhatsApp Business account, singly or in bulk. $0.004 per single check, $0.0003 per check in bulk. Unknown single checks are free.

Single-check price · USD per check: $0.004
Bulk price · USD per check: $0.0003

What this product checks

Returns one answer: whether the number is a Business account. A personal account or a number without WhatsApp is not a Business account; an unknown answer must not be treated as false.

Reading the result

There is one answer: whether the number is a WhatsApp Business account. An ordinary WhatsApp account shows as not a Business account; an unknown answer stays unknown and is free in a single check.

Where teams use WhatsApp Business checks

Separate business contacts from personal ones in a B2B prospect list.
Check whether a supplier or reseller number runs a WhatsApp Business account before onboarding.
Route business numbers to your partnerships team and personal numbers to consumer support.

Cost example for WhatsApp Business

1,000 · Bulk price1,000 × $0.0003$0.30

300 · Bulk priceBilled as the minimum$0.15

1,000 · Single-check price1,000 × $0.004$4.00

−93%

1,000 valid unique numbers from one country cost $0.30 at the bulk price ($0.0003 each). A country with only 300 numbers is still checked and is billed as the minimum number of checks: $0.15. Checking the 1,000 numbers one by one at the single-check price would cost $4.00.

This is the cost shown before you submit. Duplicates and invalid rows are removed first; a completed list is charged this amount, unknown results included, and a failed list is refunded in full.

How pricing works

Related workflow

One answer: Business account or not

WhatsApp Business returns one answer: whether the phone number is a WhatsApp Business account. Single checks and bulk uploads give the same answer; in the API, registered and business carry the same value.

Use the dedicated product

1
Choose WhatsApp Business in a single phone check or a bulk upload. A single check uses the real-time price; a bulk upload uses the lower bulk price.
2
There are three outcomes: Business account, not a Business account, or unknown. An ordinary WhatsApp account and a number without WhatsApp are both “not a Business account”.
3
A single check charges only for a definitive answer; an unknown answer is free. In a bulk list, each country is charged in full once it completes, unknown answers included.

One answer, three outcomes

business: true: The number is a WhatsApp Business account.
business: false: Not a Business account: an ordinary WhatsApp account, or no WhatsApp at all.
business: null: Unknown. Not charged in a single check, and not to be read as false.

Product questions

How does an ordinary WhatsApp account show?

As “not a Business account”. To learn whether a number is registered on WhatsApp, choose the WhatsApp product as well.

Can I run a bulk Business check?

Yes. Select WhatsApp Business in a bulk upload; the list uses the bulk price.

What if the answer is unknown?

It stays unknown. A single check is not charged for it; in a bulk upload it is part of its group, which is charged in full once the batch completes. You can check again later.

How much does each WhatsApp Business check cost?

$0.004 per single check, in real time. In a bulk task each country is its own group at $0.0003 per check; a country with only a few numbers is billed as the minimum number of checks. A group is charged in full once its batch completes, unknown rows included, and refunded if the batch fails.

Is an unknown WhatsApp Business result charged?

Not in a single check: only a conclusive answer is charged. In bulk, yes: each country is charged in full once it completes, unknown rows included; a list that fails is refunded. Invalid rows and duplicates cost nothing.

Can I check WhatsApp Business through the API?

Yes. Send POST /api/v1/checks with the product ID whatsapp_business for one input, or POST /api/v1/bulk-jobs with a file for a list.

Example request

Developers

POST /api/v1/checks

curl "https://api.numdetect.com/api/v1/checks" \
  -H "Authorization: Bearer $NUMDETECT_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "phone": "+12025550147",
  "products": [
    "whatsapp_business"
  ]
}'

Illustrative request with a sample number. Replace $NUMDETECT_API_KEY with your key; each run is a real, charged check.

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