Phone Number Validation (Batch)

Use this endpoint when you need to validate or normalize multiple phone numbers at once (up to 25) without making separate API calls. Because it runs on pure CPU with no upstream dependencies, it is extremely fast and reliable. Prefer this over single-number validation endpoints when dealing with lists of contacts, form submissions, or CRM data cleanup. It is ideal for pre-send validation before SMS campaigns or lead qualification pipelines.

• Batch exceeds 25 numbers — request rejected or truncated
• Malformed input schema — missing required 'input' field returns validation error
• Unparseable phone number strings return per-item error rather than failing the whole batch
• Payment not received or insufficient USDC — x402 payment required error
• Rate limiting if too many calls made in rapid succession