Crystal clear validation that flows seamlessly. Verify emails with the precision of ocean currents.
Every email goes through our multi-layer validation system
RFC-compliant format validation
DNS record confirmation
Mail server detection
Mailbox confirmation
Temp email detection
Generic address flagging
Pay only for what you use. Credits never expire.
Only charged for deliverable and undeliverable results. Risky/unknown are free.
Simple REST API. Get started in minutes.
curl "https://nukopt.com/api/v1/verify\
?email=test@gmail.com" \
-H "Authorization: Bearer YOUR_API_KEY"{
"is_valid": true,
"result": "deliverable",
"recommendation": "safe_to_send",
"reason": "Email exists and accepts mail"
}