Get a free email validation API key
5,000 free lookups to build and test with. No card, no trial clock. Enter your email address and your key appears straight away.
Free tier
5,000 lookups, free
Every lookup runs the full set of checks, the same as on paid plans.
- Syntax, domain, MX, disposable, role-account and typo checks
- Single and batch endpoints (up to 100 addresses per request)
- One free key per email address
- Need more than 5,000? Upgrade to pay as you go
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Your API key · 5,000 free lookups
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Terminal
Each response includes an X-Quota-Remaining header. When the free lookups run out, the API returns 402 with a link to upgrade. Read the API reference to get started.