Check a phone number before you message it on WhatsApp. One request returns validity, line type, carrier, location, WhatsApp registration, and business-account detection. For list cleaning and campaigns. Send an E.164 number to GET /wavalidation. 20 free requests per application, then $0.003 each, or $9.99/month for 5,000 and $29.99/month for 30,000. Try 5 live checks per IP a day.
