Protect Your Forms from
Fake & Disposable Emails

const response = await fetch('https://checkboxhq.com/api/v1/verify_disposable/', {
  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.is_disposable); // true

import requests

response = requests.post(
    'https://checkboxhq.com/api/v1/verify_disposable/',
    headers={
        'x-api-key': 'YOUR_API_KEY',
        'Content-Type': 'application/json'
    },
    json={'email': '[email protected]'}
)

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

$ch = curl_init('https://checkboxhq.com/api/v1/verify_disposable/');

curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => [
        'x-api-key: YOUR_API_KEY',
        'Content-Type: application/json'
    ],
    CURLOPT_POSTFIELDS => json_encode(['email' => '[email protected]'])
]);

$response = curl_exec($ch);
$data = json_decode($response, true);
echo $data['is_disposable']; // 1

package main

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

func main() {
    payload := map[string]string{"email": "[email protected]"}
    body, _ := json.Marshal(payload)

    req, _ := http.NewRequest("POST",
        "https://checkboxhq.com/api/v1/verify_disposable/",
        bytes.NewBuffer(body))

    req.Header.Set("x-api-key", "YOUR_API_KEY")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, _ := client.Do(req)
    defer resp.Body.Close()
}