⚙️ Integration

Connect Anything to WhatsApp

Whether it's a simple PHP website, a complex React app, or an enterprise ERP system — Postabi's REST API makes integration seamless. No webhooks required for basic sending.

          // Example PHP Snippet

          $resp = post('https://api.postabi.com/send', [

            'to' => '923001234567',

            'msg' => 'Hello from Postabi!'

          ]);

Explore Full Documentation

Built for Stability

Our API infrastructure handles the heavy lifting, ensuring your messages are delivered even during peak traffic hours in Pakistan.

99.9%

Uptime Guarantee

HTTP/S

Secure RESTful API

🛠️ Technical Reference

WhatsApp Web API Integration

Use these parameters to send messages via our REST API. We support Text, Image, Video, and Documents.

CURL Request Example

$curl = curl_init();
curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://postab.site/api/whatsapp-web/send-message',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS => array(
    'app_key' => 'YOUR_APP_KEY',
    'auth_key' => 'YOUR_AUTH_KEY',
    'to' => 'RECEIVER_NUMBER',
    'message' => 'Example message',
  ),
));

$response = curl_exec($curl);
curl_close($curl);
echo $response;

Successful JSON Callback

{
  "status": "Success",
  "data": {
    "from": "SENDER_NUMBER",
    "to": "RECEIVER_NUMBER",
    "status_code": 200
  }
}

Method & Parameters

Method: POST
Endpoint: https://postab.site/api/whatsapp-web/send-message

Param	Req	Details
app_key	Yes	Used to authorize the app transaction
auth_key	Yes	Used to authorize the valid user
to	Yes	Recipient WhatsApp number with country code
type	Yes	The type of message (text, image, etc.)
message	Opt	Required for text only messages
url	Opt	Required for media files (direct URL)

The Developer-Friendly WhatsApp REST API