Check Number
AI-generatedSummary
Check if a phone number is registered on WhatsApp
Inputs
- phone (required) — Phone number to check (with country code)
Output shape
a single JSON object representing the check result
Typically contains fields indicating existence or status of the number; errors are propagated as exceptions
Examples
Example 1: Validate a user-provided contact before sending a message
Operation set to Check Number, Phone Number = +15551234567
Example 2: Pre‑flight check for bulk contact import
Batch items each with Phone Number parameter; operation remains Check Number