UserCheck (formerly MailCheck.ai)
FreemiumLiveLast verified 24 Sept 2026
Flags disposable, role, and forwarding email addresses and suggests typo corrections via MX/domain checks.
Example request
curl -s 'https://api.usercheck.com/email/user@gmail.com' -H 'Authorization: Bearer $API_KEY'
Free tier, in plain English
Free plan includes 1,000 email lookups a month; paid plans start at $50/month for 200,000 credits.
Alternatives in Email Verification
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