Email Verification API

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Email Verification API | ToolKK

Response Example

{
  "code": "SUCCESS",
  "message": "success",
  "data": {
    "email": "hello@example.com",
    "syntax_valid": true,
    "is_deliverable": true,
    "is_disposable": false,
    "is_role_account": false,
    "mx_records": true,
    "score": 0.85
  }
}

Path	Type	Sample
email	string	hello@example.com

Response Fields

The fields below are derived from example JSON for integration reference only.

Path	Type	Sample
code	string	SUCCESS
message	string	success
data	object	{...}
data.email	string	hello@example.com
data.syntax_valid	boolean	true
data.is_deliverable	boolean	true
data.is_disposable	boolean	false

Shell Example

curl --request POST \
  --url 'https://openapi.toolkk.com/v1/email-verification' \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: YOUR_API_KEY' \
  --data '{\n  "email": "hello@example.com"\n}'

Python Example

import os
import requests

url = "https://openapi.toolkk.com/v1/email-verification"
payload = {
  "email": "hello@example.com"
}

headers = {
    "Content-Type": "application/json",
    "X-API-Key": os.getenv("TOOLKK_API_KEY", "YOUR_API_KEY"),
}

response = requests.request("POST", url, headers=headers, json=payload, timeout=30)
response.raise_for_status()
print(response.json())

Go Example

package main

import (
    "bytes"
    "fmt"
    "io"
    "net/http"
)

func main() {
    endpoint := "https://openapi.toolkk.com/v1/email-verification"
    payload := []byte("{\n  \"email\": \"hello@example.com\"\n}")

    req, err := http.NewRequest("POST", endpoint, bytes.NewBuffer(payload))
    if err != nil {
        panic(err)
    }

    req.Header.Set("Content-Type", "application/json")
    req.Header.Set("X-API-Key", "YOUR_API_KEY")

    resp, err := http.DefaultClient.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, err := io.ReadAll(resp.Body)
    if err != nil {
        panic(err)
    }

    fmt.Println(string(body))
}

Java Example

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class ToolkkExample {
    public static void main(String[] args) throws Exception {
        String payload = "{\n  \"email\": \"hello@example.com\"\n}";

        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://openapi.toolkk.com/v1/email-verification"))
            .method("POST", HttpRequest.BodyPublishers.ofString(payload))
            .header("Content-Type", "application/json")
            .header("X-API-Key", "YOUR_API_KEY")
            .build();

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

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

PHP Example

<?php

$endpoint = 'https://openapi.toolkk.com/v1/email-verification';
$payload = "{\n  \"email\": \"hello@example.com\"\n}";

$ch = curl_init($endpoint);
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
        'X-API-Key: YOUR_API_KEY',
    ],
    CURLOPT_POSTFIELDS => $payload,
]);

$response = curl_exec($ch);
if ($response === false) {
    throw new RuntimeException(curl_error($ch));
}

curl_close($ch);
echo $response;

Email Verification

Documentation

Email Verification

Endpoint

Authentication

Billing

Errors

Integration Examples

Request Example