An email verification API that doesn't cost a fortune.
Validate emails in real time or in bulk, block disposable signups, and cut bounce rates — with a clean JSON API and pay-as-you-go pricing built for small teams.
Why developers pick ClearMX
One POST request
No SDK, no ceremony. Send an email, get a verdict, a score and every check in JSON.
Real-time + bulk
Verify at signup in-request, or clean whole CSV lists and export the deliverable rows.
Credits that never expire
Pay as you go — buy once, spend whenever. No subscription required, no monthly reset.
Honest results
Catch-alls and disposable domains are scored as risky, not hidden behind a green checkmark.
What the API returns
Each request comes back with a result, a 0–100 score, and the individual checks — so you can decide exactly how to treat valid, risky and invalid addresses. See the full reference on the API page.
Frequently asked questions
Syntax, domain and MX records, disposable domains, role accounts, free providers and catch-all signals — returned as a single result plus a 0–100 score.
Yes. Verify a single address in the request/response cycle, or upload CSV lists for bulk cleaning with results you can export.
Pay as you go — buy credits once and they never expire; no subscription required, and an optional monthly plan is 20% cheaper per credit. Start free with 500 verification credits; pricing runs from €0.0060 per credit and gets cheaper at volume.