Send SMS from the software you already use

curl -X POST "https://www.textguru.in/YOUR-API-ENDPOINT" \
  -d "api_key=CUSTOMER_API_KEY" \
  -d "sender=TXTGRU" \
  -d "mobile=9198XXXXXXXX" \
  -d "template_id=DLT_TEMPLATE_ID" \
  --data-urlencode "message=Dear Ravi, your bill INV-2041 of Rs.3,450 is generated. -TXTGRU"

<?php
// Call this after your software saves a bill / order
$data = array(
    'api_key'     => $settings['textguru_api_key'],   // customer pastes this in your SMS settings
    'sender'      => $settings['textguru_sender'],    // 6-letter DLT sender ID, e.g. TXTGRU
    'mobile'      => $customer['mobile'],
    'template_id' => $settings['dlt_template_bill'],  // DLT template ID
    'message'     => "Dear {$customer['name']}, your bill {$bill['no']} of Rs.{$bill['total']} is generated. -TXTGRU",
);
$ch = curl_init('https://www.textguru.in/YOUR-API-ENDPOINT');
curl_setopt_array($ch, array(CURLOPT_POST => true, CURLOPT_POSTFIELDS => http_build_query($data), CURLOPT_RETURNTRANSFER => true, CURLOPT_TIMEOUT => 15));
$response = curl_exec($ch);
curl_close($ch);

// Node.js 18+ (server side only — never expose the API key in a browser)
const body = new URLSearchParams({
  api_key: settings.textguruApiKey,
  sender: settings.textguruSender,       // e.g. TXTGRU
  mobile: customer.mobile,
  template_id: settings.dltTemplateBill,
  message: `Dear ${customer.name}, your bill ${bill.no} of Rs.${bill.total} is generated. -TXTGRU`,
});
const res = await fetch('https://www.textguru.in/YOUR-API-ENDPOINT', { method: 'POST', body });
console.log(await res.text());