Phone Number Batch Validation API

Choose this endpoint when you need to validate multiple phone numbers at once (up to 50) in a single API call, making it cost-effective and efficient compared to single-number validation loops. Ideal for CRM data cleansing, pre-SMS campaign validation, user registration pipelines, or any workflow where a batch of contacts needs phone verification before outreach.

• Array exceeds 50 phone numbers — request rejected with batch size error
• Malformed phone number strings cause per-item validation errors
• Empty phones array returns error or empty results
• Missing required phones parameter returns 400 Bad Request
• Payment failure via x402 protocol blocks the request
• Rate limiting if too many requests are sent in quick succession