Check Email Addresses
Instantly

curl -X POST https://api.emailcheck.dev/v1/validate \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"email":"[email protected]"}'

# Response
{
  "email": "[email protected]",
  "normalizedEmail": "user@example.com",
  "suggestedEmail": null,
  "valid": true,
  "confidenceScore": 90,
  "deliverabilityLikelihood": "high",
  "syntaxValid": true,
  "mxRecordsFound": true,
  "disposable": false,
  "roleBased": false,
  "freeProvider": false,
  "provider": "custom",
  "catchAll": false,
  "warnings": []
}

const response = await fetch('https://api.emailcheck.dev/v1/validate', {
  method: 'POST',
  headers: {
    'X-API-Key': 'YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({ 
    email: '[email protected]' 
  })
});

const data = await response.json();
console.log(data.valid); // true

import requests

response = requests.post(
    'https://api.emailcheck.dev/v1/validate',
    headers={
        'X-API-Key': 'YOUR_API_KEY',
        'Content-Type': 'application/json'
    },
    json={'email': '[email protected]'}
)

data = response.json()
print(data['valid'])  # True

<?php

$ch = curl_init('https://api.emailcheck.dev/v1/validate');

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'X-API-Key: YOUR_API_KEY',
    'Content-Type: application/json'
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, 
    json_encode(['email' => '[email protected]'])
);

$response = curl_exec($ch);
$data = json_decode($response, true);

echo $data['valid']; // true

require 'net/http'
require 'json'

uri = URI('https://api.emailcheck.dev/v1/validate')
request = Net::HTTP::Post.new(uri)
request['X-API-Key'] = 'YOUR_API_KEY'
request['Content-Type'] = 'application/json'
request.body = { email: '[email protected]' }.to_json

response = Net::HTTP.start(uri.hostname, uri.port, 
                           use_ssl: true) do |http|
  http.request(request)
end

data = JSON.parse(response.body)
puts data['valid']  # true

package main

import (
    "bytes"
    "encoding/json"
    "net/http"
)

func validateEmail() {
    payload := map[string]string{
        "email": "[email protected]",
    }
    jsonData, _ := json.Marshal(payload)
    
    req, _ := http.NewRequest("POST", 
        "https://api.emailcheck.dev/v1/validate",
        bytes.NewBuffer(jsonData))
    
    req.Header.Set("X-API-Key", "YOUR_API_KEY")
    req.Header.Set("Content-Type", "application/json")
    
    client := &http.Client{}
    resp, _ := client.Do(req)
}

import java.net.http.*;
import java.net.URI;

HttpClient client = HttpClient.newHttpClient();

String json = "{\"email\":\"[email protected]\"}";

HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("https://api.emailcheck.dev/v1/validate"))
    .header("X-API-Key", "YOUR_API_KEY")
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString(json))
    .build();

HttpResponse<String> response = client.send(request,
    HttpResponse.BodyHandlers.ofString());

System.out.println(response.body());