One-shot verification API
A single GET call returns syntax, MX, disposable, spam and typo suggestion — integrate at signup to block fake addresses before they hit your database.
Verify before you send
Stop wasting sends on invalid or disposable addresses. One-shot API, bulk CSV cleanup, and deep SMTP reachability checks — all from one dashboard. Free plan, no credit card.
Deep SMTP reachability
Go beyond format checks: connect to the actual mailbox to confirm it accepts mail. Spot catch-all and full inboxes your ESP would otherwise bounce on.
Developer-first REST API
Transparent JSON, predictable credit pricing, and examples in cURL, Python and Node — ship a production integration in minutes.