A WhatsApp number checker verifies whether a phone number is currently registered on WhatsApp, without sending a message or notifying the number's owner. Enter any number below with its country code to check WhatsApp number online free, run a WhatsApp number lookup, or confirm business account status in under 2 seconds.
Please enter a number below
It works the same way for Indian numbers as it does anywhere else. Enter a +91 number and you get the same real-time result as a US or UK one, no separate regional version needed. The checker itself is free, with no signup and no verification step standing between you and the result.
To check WhatsApp number online, type the number with its country code into the field above and press Verify Number. The WA checker runs a real-time check number on WhatsApp request through WhatsApp's own registration signal and returns a result in under 2 seconds. No download, no browser extension, no WhatsApp Web session needed.
This is the fastest way to check a phone number's WhatsApp status before you save the contact, add it to a list, or reach out. Use the same field to run a WhatsApp number check on desktop or mobile, in any browser.
Checking WhatsApp numbers one at a time works for occasional lookups, but it does not scale. Verifying 10,000 numbers by hand through the free tool above, at roughly 2 seconds per check plus the time to copy and paste each one, adds up to more than 5 hours of manual work. The same 10,000-number list runs through the Bulk WhatsApp Validation API in a single batch upload.
Use the free tool above for a one-off WhatsApp number check API free lookup. No account needed, no rate limit beyond normal browser use. Best for confirming one contact before you message them.
Check it on PlaygroundRun a bulk WhatsApp number checker across a contact list, CRM export, or lead file. The Bulk WhatsApp Validation API processes up to 1,000 numbers per batch and returns active, inactive, and business-account status for each row. This replaces a workflow that would otherwise mean pasting numbers into this tool one at a time. It handles WhatsApp number checker bulk jobs without the manual bottleneck.
Explore Bulk WhatsApp Validation APIBuilding this into a CRM, signup form, or messaging pipeline? This is where the WhatsApp number checker API comes in. Call GET /api/v1/checkwanumber directly from your code and get a JSON response with numberstatus and businessnumber fields back. It's the same check running behind the Bulk Validation product above, exposed here as a standalone endpoint you call yourself.
This WhatsApp number checker tool combines a real-time connection to WhatsApp's own registration network with a simple interface, so casual users and developers get the same accurate result from the same endpoint. Here is what separates this online WhatsApp checker tool from WhatsApp checker tools built on outdated, cached number databases.
Every check runs against WhatsApp's live network at the moment you submit it, not a database updated last week. If a number was deactivated an hour ago, this WhatsApp checker tool reflects that.
Enter a number, press Verify, get a result. No account creation required for the free tool.
The number you enter is used only to run that single check. It is not stored after the request completes, not added to a marketing list, and not shared with any third party. Because no message is sent to the number, the check stays invisible to its owner.
Get WhatsApp registration status and business-account detection in one request, not two separate lookups.
Results are backed by a live backend connection, not a static or scraped list of numbers.
Works for India, the US, the UK, and international numbers alike, with no separate setup per country.
To check if a number is on WhatsApp, enter it with the correct country code, submit the request, and read the numberstatus field in the response. The three steps below explain what happens whether you use the free tool or call the WhatsApp number checker API directly.
Type the phone number with its country code. Numbers must be in E.164 format (for example, +14155552671) so the system routes the how to check phone number on WhatsApp request to the correct country's WhatsApp registry.
Hit the verify button. The request reaches WhatsApp's live network and returns a response, typically in under 2 seconds.
Read the instant result: registered or not, business or personal. This is the same result returned by the workflow, whether triggered from this page or from an API call.
The WhatsApp number checker returns a JSON response with three fields: whether the number exists on WhatsApp, whether it's a WhatsApp Business account, and its current status. No name, profile photo, or last-seen timestamp is included. This is a registration check, not a WhatsApp number validator that returns personal details.
numberstatus (boolean): true means the number is registered on WhatsApp. This directly answers the check if WhatsApp number exists.businessnumber (boolean): true means it's a WhatsApp Business account rather than a personal one.status (string): additional detail confirming the check if WhatsApp number is active state at the moment of the request.{
"status": "VALID_CONFIRMED",
"numberstatus": true,
"businessnumber": false
}
In practice, this is what people mean when they search for a WhatsApp validator: something that confirms status, not just phone number format. It works the same whether you're checking one number before an outreach message or a handful of entries pulled from a spreadsheet.
WhatsApp Number Checker pricing runs on prepaid credits or a subscription, whichever fits how often you check numbers. Pay once for a batch, or subscribe if you're checking numbers every week. No hidden per-call fees on top of your plan.
Explore the product now or contact us for the right allowance and pricing.
+91XXXXXXXXXX to get the same real-time result as any other supported country. This tool checks WhatsApp number online India the same way it checks a US, UK, or any other international number.numberstatus: false is not currently registered on WhatsApp, the clearest signal for how to check the authenticity of a WhatsApp number and how to check fake WhatsApp number. A fake or disconnected number typically fails this check outright.businessnumber field in every response flags whether a number is a WhatsApp Business account, so this works as a WhatsApp account checker and WhatsApp availability checker for business numbers specifically, not just personal ones.GET /api/v1/checkwanumber, returns real-time registration status and business-account detection for any number in E.164 format. Built for CRM data cleaning, lead validation, and marketing automation.The WhatsApp Number Checker API lets you send a GET request with a phone number and receive a JSON response confirming WhatsApp registration status. This is built for CRM data cleaning, lead validation, and OTP flows, where checking a number before you message it saves the cost of a failed delivery.
| Endpoint | GET /api/v1/checkwanumber |
|---|---|
| Auth | API Key via query string — ?api_key=YOUR_KEY |
| Parameter | number — Phone number in E.164 format (e.g., +14155552671) |
| Response | JSON — numberstatus (bool), businessnumber (bool), status |
| Latency | Real-time — average <2 seconds |
| Coverage | 180+ countries |
| Accuracy | 99.7% |
curl -X GET "https://lookup.proweblook.com/api/v1/checkwanumber?api_key=YOUR_API_KEY&number=+14155552671"
Yes. Many teams call this endpoint before sending a WhatsApp OTP verification API request, so they only pay for OTP delivery on numbers confirmed to exist on WhatsApp. This is a common pattern behind best WhatsApp 2FA verification API global setups, filtering dead numbers out of a signup flow before the OTP step, instead of after a failed delivery.
A Twilio check if number has WhatsApp setup works inside the Twilio ecosystem, tied to a Twilio-provisioned number and messaging service. This WhatsApp verification API and WhatsApp API verification endpoint works as a standalone REST call with no dependency on a separate messaging platform. Both return a similar numberstatus signal, the choice comes down to whether you're already inside Twilio's stack or need a lighter, independent check.
An HTTP 401 response means the api_key parameter is missing, expired, or incorrect. Confirm the key is copied exactly from your dashboard, with no extra spaces, and passed in the query string, not the request body. A WhatsApp number verification API call with a valid key returns HTTP 200 with the JSON payload described above.
This is WhatsApp's unofficial API to check whether a number is on WhatsApp or not. Use any number with a country code to get instant results. For a WhatsApp OTP verification API free trial, bulk access, or full API access, sign up to get started with free credits.
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Run your first 30 API checks free, no credit card required. Automate the WhatsApp number checker across your full contact list once you are ready to move past manual, one-at-a-time checks.