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WhatsApp Number Validator

Free WhatsApp Number Verification

Quickly verify whether a phone number is associated with a WhatsApp account

Validate a list Try on RapidAPI Run on Apify
Single and bulk validation International numbers REST + JSON
Live tool

Number validation

Free

Include the country code. A leading + is optional.

Validate

20 Free lookups remaining today. The daily allowance is shared across the free number and profile tools.

Related resources

Format, validate and integrate with fewer surprises.

Developer resources

WhatsApp Number Format Guide

Format international numbers correctly before validation.

Read the guide

Bulk WhatsApp Validation: CSV & TXT Guide

Prepare clean lists and understand the bulk workflow.

Read the guide

WhatsApp API Code Examples

Start with cURL, C#, Python, Node.js or PHP.

Code examples

Make.com WhatsApp Number Validator Integration

Connect API Factory’s WhatsApp validation endpoint to Make.com automation scenarios.

Read the guide

Need to check a list?

Have a bulk list to validate?
Only US$ 0.90 per 10,000 checks

Upload CSV or TXT — no API integration needed

  • From one lookup to large CSV lists
  • International numbers
  • Available through RapidAPI and Apify
Direct subscription — 20% lessSame published plan limits, lower monthly price RapidAPIAPI subscriptions and interactive testing ApifySingle and bulk validation workflows
CSV / TXT bulk validation Secure checkout
Upload CSV or TXT
Do the numbers in your list include the country code?
Email address
Upload

WhatsApp Number Validator

Validate before the next step in your workflow.

Check a single number here for free, upload a CSV/TXT list, or integrate the same validation workflow into your app.

What does the Number Validator check?

It checks whether a phone number is registered on WhatsApp and returns a straightforward validation result. It does not send a message to the number.

Can I validate a large list?

Yes. Use the bulk checker on this website for CSV processing or integrate the API into your own batch workflow.

Do I need an API integration?

No. The bulk upload flow works directly on this page. Developers can also use RapidAPI or Apify for automated workflows.

Start where you already build

Choose RapidAPI for an interactive playground or Apify for pay-per-result workflows and platform integrations.

RapidAPI Apify