Check if a number
is on WhatsApp
Paste any international phone number and instantly find out whether it can receive WhatsApp messages — plus country, currency, and business profile data.
For businesses & developers
Validate thousands of numbers automatically
Upload a CSV of contacts and get back a clean, validated list — split into WhatsApp-active and inactive columns. Ready to import directly into your broadcast campaigns.
7-day trial · No card required
What you get with Cincht
Turn validated numbers into paying customers
Bulk CSV validation
Upload any CSV. We validate every number and return a clean list split into valid/invalid rows.
Instant broadcast
Take your validated list and send a Meta-approved template campaign directly from Cincht — no copy-paste.
AI-powered follow-up
Set up automated WhatsApp sequences that respond, qualify, and nurture leads without manual effort.
Delivery analytics
See open rates, replies, and conversion data for every campaign you send to validated contacts.
CRM integration
Validated contacts sync directly into Cincht CRM with tags, segments, and custom fields.
Developer API
Validate programmatically via REST API. Same endpoint this tool uses. 50,000 lookups/month included.
FAQ
Frequently asked questions
Ready to mine your market?
Upload your prospect list, validate it in seconds, and launch a WhatsApp campaign that reaches the people who are actually on the platform.
7-day free trial · No card required · Cancel anytime