Learn how to verify contact attributes like email and phone in bulk using real-time validation APIs.

The attribute verification APIs allow you to validate contact attributes, such as email addresses and phone numbers, in bulk through a single real-time request. These APIs are designed for high-efficiency workflows such as large-scale data cleansing, onboarding, or contact enrichment.

Each request supports multiple records and returns enriched results including validity status, formatting, and network or domain-level metadata. These results can help improve data quality, reduce delivery failures, and ensure contact details are actionable.

The following attribute verification APIs are available:

• Email batch verification API.

• Phone batch verification API.