Proweblook Whatsapp Contact Checker

About Proweblook Whatsapp Contact Checker

ProWebLook's WhatsApp Number Checker is an API and online tool that verifies whether a phone number is registered on WhatsApp, including detection of WhatsApp Business accounts. It returns real-time results such as WhatsApp status, business account flag, and country, and covers numbers across 180+ countries. A free web-based checker is available for individual lookups, alongside a Bulk WhatsApp Validation API for batch processing of up to 1,000 numbers per request.

The product is aimed at businesses and developers who need to validate phone numbers before messaging or onboarding, such as for lead verification or contact list cleanup. Access requires signing up for a free account that includes complimentary API credits, with bulk/API access available beyond the free web checker.

It is part of a broader ProWebLook catalog of phone, identity, web intelligence, and social data APIs, and is documented with an OpenAPI 3.0 specification and Postman collection for integration.

Key features

• Real-time WhatsApp number verification across 180+ countries
• Detects WhatsApp Business accounts
• Bulk WhatsApp validation API for batch processing up to 1,000 numbers
• Returns country and response time data via JSON API
• Free online checker with no credit card required

Frequently asked questions