Email Validation API
Integrate email validation into your applications with our free REST API. No API key required. Perfect for signup forms, contact forms, and marketing automation.
Quick Start
Make a POST request to validate an email address:
curl -X POST https://api.emailvalidator.io/v1/validate \
-H "Content-Type: application/json" \
-d '{"email": "example@domain.com"}' Endpoints
POST
/v1/validate Validate a single email address. Returns validation result with syntax check, MX record status, and disposable email detection.
POST
/v1/validate/bulk Validate multiple email addresses at once. Accepts up to 1000 emails per request.
GET
/v1/check-mx?domain=example.com Check MX records for a domain. Returns mail server information.
GET
/v1/check-disposable?domain=example.com Check if a domain is a known disposable email provider.
Request & Response Examples
Request Body
{
"email": "example@domain.com"
} Success Response
{
"success": true,
"data": {
"email": "example@domain.com",
"valid": true,
"status": "valid",
"checks": {
"syntax": true,
"mx": true,
"disposable": false,
"role_based": false
},
"domain": "domain.com",
"local_part": "example",
"mx_records": [
"mx1.domain.com",
"mx2.domain.com"
]
}
} Error Response
{
"success": false,
"error": {
"code": "INVALID_EMAIL",
"message": "The email address format is invalid"
}
} Code Examples
JavaScript / Node.js
const response = await fetch('https://api.emailvalidator.io/v1/validate', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ email: 'example@domain.com' })
});
const data = await response.json();
console.log(data); Python
import requests
response = requests.post(
'https://api.emailvalidator.io/v1/validate',
json={'email': 'example@domain.com'}
)
data = response.json()
print(data) PHP
'example@domain.com'])); curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $response = curl_exec($ch); $data = json_decode($response, true); print_r($data); ?>
Rate Limits
Our API is free to use with the following rate limits:
| Plan | Requests/Day | Requests/Second |
|---|---|---|
| Free | 10,000 | 10 |
Try It Now
Test the API with your own email address: