Developer-first WhatsApp data APIs

Know which numbers are on WhatsApp. Enrich the ones that matter.

Validate individual numbers or entire contact lists, then retrieve available profile and business data through focused REST APIs.

Validate a list Use the API

Single and bulk validation International numbers Simple JSON responses

Live tool

Try a WhatsApp lookup

Free

Phone number

Include the country code. A leading + is optional.

Check number

Need to check a list?Upload CSV or TXT — no API integration needed

20 free lookups per day, shared across the number and profile tools.

Built for volumeFrom one lookup to large CSV lists

Developer friendlyREST endpoints with predictable JSON

Two ways to integrateAvailable through RapidAPI and Apify

Focused products

Validate first. Enrich next.

Two APIs that work naturally together, without forcing you into a large communications platform.

See the complete API catalogue

Flagship API

WhatsApp Number Validator

Check whether phone numbers are registered on WhatsApp before you message, import or enrich them. Use the API for real-time checks or upload a list for bulk validation.

Single lookup
Bulk CSV processing
International format
REST + JSON

Try the free checker View on RapidAPI

Enrichment

Profile Data API

Retrieve available profile pictures and WhatsApp Business details such as description, category, address, website and opening hours.

Explore profile data

Messaging

Messaging Hub

Need sending and receiving as well? Connect an existing WhatsApp session to messaging, files, groups and webhook endpoints.

View Messaging Hub

A cleaner workflow

From raw phone numbers to useful data

Keep your integration small and call only the product you need.

Send a phone number

Use international format with the country code. Call the API directly or submit a CSV for a bulk job.

Confirm registration

Receive a clear valid or invalid result and remove unsuitable records before the next workflow step.

Enrich valid contacts

When you need more context, request available public profile and business information separately.

Practical use cases

Designed for the data work behind the message

CRM cleansing

Identify which stored phone numbers are usable on WhatsApp before running a workflow.

Lead enrichment

Add available profile and business context to valid contacts in your pipeline.

Form validation

Verify submitted phone numbers during onboarding, registration or lead capture.

Automation

Connect validation and enrichment to n8n, Make, Zapier or your own application.

Read the guide

Start where you already build

Use RapidAPI for familiar API subscriptions and testing, or run the products through Apify for pay-per-result workflows and platform integrations.

Direct pricing RapidAPI Apify

FAQ

Before you integrate

Clear answers to the questions developers usually ask before their first request.

Still have a question? Contact us

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.

Does Profile Data always return every field?

No. Availability depends on the account type, the information configured by the account owner and their privacy settings. Unavailable fields may be returned as null.

Do I have to buy both APIs?

No. Validation and enrichment are separate products. Use either one independently, or combine them in your own workflow.

Is API Factory affiliated with WhatsApp?

No. API Factory is an independent service and is not affiliated with or endorsed by WhatsApp LLC or Meta Platforms, Inc.

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