WhatsApp Number Checker

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WhatsApp Number Checker is a minimal bulk WhatsApp validator: feed it a list of phone numbers and get back a simple yes/no for each — is the number registered on WhatsApp or not. No profile data, no extras. Download the results as JSON, CSV, Excel, HTML, or XML.

Use it to check if a number is on WhatsApp, clean phone lists, and verify leads before a campaign. It runs in the cloud and needs no coding.

What does it do?

For each phone number, the Actor:

1. Validates the phone number format — malformed numbers are reported per-number, not lookups.
2. Checks WhatsApp registration — confirms whether the number is a real, registered WhatsApp account.

That's it. If you also need profile pictures, about text, and WhatsApp Business details, use the full WhatsApp Number Checker & Validator Actor instead.

What data does it return?

Each result is one row per phone number:

A number that can't be checked (e.g. invalid format) comes back with an error field instead, and the run keeps going.

Input

Provide a numbers array of phone numbers in international E.164 format. Up to 50 numbers per run.

{
"numbers":["+14155552671","+353830648858"]
}

Output

[
{"number":"14155552671","hasWhatsApp":true},
{"number":"353830648858","hasWhatsApp":false}
]

Running locally

Set GATEWAY_URL (and optionally GATEWAY_TOKEN) to point at your WhatsApp gateway service, then:

npminstall
npm start