The most affordable email OTP verification API. Send email verification codes at just $0.0025 per email. 20x cheaper than SMS, instant delivery, 99.9% deliverability.
Save money without sacrificing security
Email OTP costs $0.0025 vs SMS at $0.015. For 100,000 verifications:
Email OTPs arrive in under 3 seconds. No carrier delays, no SMS routing issues. Perfect for time-sensitive verifications.
99.9% deliverability rate with Amazon SES infrastructure. No SMS carrier blocks or number porting issues.
Design custom email templates with your branding, logo, and colors. SMS is limited to plain text.
Two API calls to send and verify email OTPs
// Send Email OTP
const response = await fetch('https://api.sendmator.com/v1/otp/generate', {
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
identifier: 'user@example.com',
channel: 'email'
})
});
const { session_id } = await response.json();
// Verify OTP
const verify = await fetch('https://api.sendmator.com/v1/otp/verify', {
method: 'POST',
body: JSON.stringify({ session_id, code: userCode })
});
const { verified } = await verify.json();Free credits included. No credit card required. No monthly fees.
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