Send SMS Group
Send SMS Group for SMSGatewayCenter APIs
Introduction to SMSGatewayCenter APIs
Welcome to SMSGatewayCenter’s API documentation hub! This guide helps you send SMS to groups using our powerful Send SMS Group API, part of our messaging suite including SMS API for bulk messaging, WhatsApp Business API for customer engagement, Voice Call API for automated alerts, and Two-Way SMS API for interactive communication. Our API supports POST and GET methods over HTTP, offering scalability for single or comma-separated groups. Ideal for developers in India, start integrating with our SMS gateway at unify.smsgateway.center/signup/!
Send SMS to your groups efficiently, targeting single groups or comma-separated lists. Include country codes for international messaging to ensure global reach. This endpoint enhances your bulk SMS campaigns with real-time delivery reports and Unicode support, perfect for notifications or marketing.
API Endpoint
https://unify.smsgateway.center/SMSApi/send
Key | Value | Description |
---|---|---|
Login Credentials (Required) | ||
Authenticate your API request using userid-password or apiKey—choose one method. | ||
userid | Your Registered Username | Your registered username; use if apiKey isn’t provided. Signup for User ID |
password | Your Password | URL-encoded password (for special characters); use if apiKey isn’t provided. Signup for API Key |
Header (optional) Parameters | ||
apiKey | Your unique apiKey | apiKey needs to be sent as HTTP header when you are not using userid-password method. You can avail this from your user control panel and use instead of userid-password HTTP Request parameter. Please do not disclose this to anyone. |
Required Parameters | ||
sendMethod | group | Method needs to be defined as group to send SMS to groups. |
group | group1%2Cgroup2 | You can either use group ids or names in comma separated formats. |
msg | Hello World | Your message content. |
senderid | SENDER | Your registered and approved sender name, |
msgType | unicode|text | unicode for regional and text for English message content. |
output | plain|json|plain | Value for response format.System default is plain. If you need responses in json or plain then you have to give value as json or plain. |
Optional Parameters | ||
duplicatecheck | true|false | Enable to remove duplicate mobile numbers. Default is true. |
scheduleTime | Schedule Time | Date format YYYY-MM-DD HH:MM:SS |
trackLink | true|false | Enable true to track links from your SMS content. |
smartLinkTitle | Title for the link tracking | A brief title to recognise your smart link campaign. |
testMessage | true|false | Enable true to test your message and messages wont be delivered when enabled true. |
<?php
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => "https://unify.smsgateway.center/SMSApi/send",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "userid=YourUsername&password=YourPassword&&sendMethod=group&group=group1%2Cgroup2&msg=Hello+World&senderid=SENDER&msgType=text&duplicatecheck=true&output=json",
CURLOPT_HTTPHEADER => array(
"apikey: XXXXXXXXXXXXXXXXXXXX",
"cache-control: no-cache",
"content-type: application/x-www-form-urlencoded"
),
));
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
{
"status": "success",
"group": "63",
"transactionId": "8359251506264886974",
"statusCode": "200",
"reason": "success"
}

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