Use case
Clean your WhatsApp contact list before you send
Every list collected over time picks up numbers that were never on WhatsApp, were reassigned, or were mistyped. Validate the whole list in one pass and keep only the ones that work.
Where invalid numbers come from
Scraped or purchased lists
No verification step at collection time.
Form signups without validation
A phone field accepts any string that looks like a number.
Old CRM data
Numbers that were valid when collected, not necessarily valid now.
How it works
Upload a CSV or call the API
We check each number against WhatsApp
Get back only the valid ones
Real-time
Sub-100ms per number, so you catch invalid numbers before they hurt your bounce rate, not after.
195+ countries
Just add the country code. Coverage is global by default.
Organized in batches
Every check is saved to your batch, so you never pay to validate the same number twice. Never sold.
Related
Clean your first list
Upload a CSV and see what wavalid catches.