RankFabrik Verify
FreemiumLiveLast verified 24 Sept 2026
SMTP-level email verification (valid/invalid/risky/unknown) that stops before sending, billed per result.
Example request
curl -H "X-Cle-API: $API_KEY" 'https://verify.rankfabrik.com/[email protected]'
Free tier, in plain English
A free trial tier gives 500 email verifications a month with no card required; paid tiers scale up from there per address returned.
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