Verify email addresses using the BillionVerify API. Use when user wants to verify single emails, batch verify email lists, upload files for bulk verification, check credit balance, or manage webhooks.
Call the BillionVerify API to verify email addresses — single, batch, or bulk file processing.
API key must be set in environment variable BILLIONVERIFY_API_KEY.
Get your API key at: https://billionverify.com/auth/sign-in?next=/home/api-keys