Kickbox vs Kiprio Email Validate

Kickbox's free, keyless Open API endpoint answers a single question — whether an email domain is disposable — a common building block for lightweight signup-form validation. It's a separate, fully free offering from Kickbox's metered full verification product, which is where catch-all (accept-all) detection lives; a live probe found no catch-all surface on the open endpoint at all.

One of Kiprio's focused developer APIs, this endpoint runs syntax, MX-record, disposable-domain, and role-account checks on an email address and returns a confidence score in one JSON response. A keyless demo tier is rate-limited to 20 requests a day; a free API key raises that ceiling before paid plans apply.