Disify vs mail.tm

A free, keyless REST API that checks an email's syntax, DNS/MX records, whether its domain is disposable or on an allow-list, and whether its mailbox is a role address, returning a single JSON verdict. No signup is required for the core lookup, with paid business accounts available for higher volume.

mail.tm issues disposable inboxes on shared domains and exposes a Hydra/JSON-LD REST API to create accounts, fetch a bearer token, and read incoming messages, all without any signup fee. It's the fully free, actively maintained sibling of mail.gw.