Check if a phone number is registered on WhatsApp

Our service allows you to verify if phone numbers are registered on WhatsApp before contacting them. Perfect for businesses, marketing, and personal use.

Try on Telegram Use API

Features

Accurate Results

Our service uses the official WhatsApp API to provide accurate and up-to-date information about phone number registration status.

Telegram Bot

Use our convenient Telegram bot to check phone numbers from your mobile or desktop with a simple message.

Developer API

Integrate our service into your applications with our easy-to-use RESTful API for bulk verification.

How It Works

1

Start a chat with our Telegram bot

Open Telegram and search for @WS_Checker_Bot or click the link in the hero section above.

2

Send a phone number

Send one or more phone numbers (with country code) to the bot. You can send multiple numbers separated by new lines.

3

Get instant results

Our service will check each number and tell you which ones are registered on WhatsApp and which are not.

Developer API

Integrate with your applications

Our RESTful API allows you to check phone numbers programmatically from your applications. Perfect for CRM systems, marketing tools, and more.

To get your API key, use our Telegram bot and type /getapi.

API Documentation 
// Example API Request
const response = await fetch('https://whatsappchecker2.up.railway.app/api/check', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
        'x-api-key': 'YOUR_API_KEY'
    },
    body: JSON.stringify({
        numbers: ['+1234567890', '+9876543210']
    })
});

const result = await response.json();
console.log(result);