The bulk endpoint provides high-speed validation on a list of email addresses. You can use the status endpoint to retrieve real-time statistics about a bulk job in progress. Once the job has finished, the results can be retrieved with our download endpoint.


You will only be charged for the billable amount of emails found in your list. The billable amount of emails is the number of unique syntactically valid emails.

Credits will be charged from your account when a full verification is​​ started. Starting a job as with the run_sample parameter does not cost any credits.