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How to Integrate SMSGatewayCenter OTP SMS API

admin
Updated on 15/04/2025

1 min read

Ready to secure your transactions with SMSGatewayCenter’s OTP SMS API? This powerful tool generates and delivers one-time passwords instantly, perfect for 2FA or user verification. Let’s walk through the integration process step-by-step!

Integration Steps #

  1. Get Your Credentials: Log in to your SMSGatewayCenter account, head to the API section, and grab your userId, password, and senderId (ensure it’s DLT-registered for compliance).
  2. Choose Your Method: Use POST or GET requests. Endpoint: https://unify.smsgateway.center/SMSApi/otp.
  3. Set Up Parameters: Include required fields like userId, password, mobile (e.g., 919876543210), msg (e.g., Your OTP is $otp$), codeLength (e.g., 4), and sendMethod=generate. Example (PHP with cURL):
   $curl = curl_init();
   curl_setopt_array($curl, array(
       CURLOPT_URL => "https://unify.smsgateway.center/SMSApi/otp",
       CURLOPT_RETURNTRANSFER => true,
       CURLOPT_POSTFIELDS => "userid=YourUserName&password=YourPassword&mobile=919876543210&msg=Your OTP is $otp$&codeLength=4&sendMethod=generate",
   ));
   $response = curl_exec($curl);
   curl_close($curl);
   echo $response;
  1. Test the API: Send a test OTP and check the response (e.g., status: success, transactionId).
  2. Implement Verification: Use sendMethod=verify with the otp value entered by the user to validate.

Best Practices

  • Register OTP templates with DLT for compliance.
  • Set codeExpiry (e.g., 60 seconds) to limit OTP validity.
  • Use HTTPS to secure data transmission.

Support
Need assistance? Reach out to contact @ smsgatewaycenter.com or call +912228657726.

Updated on 15/04/2025