curl "https://ssl.newsman.app/api/1.2/rest/your_user_id/your_api_key/segment.addSubscriber.json?segment_id=15001&subscriber_id=127342"

<?php
 
// client can de downloaded from https://github.com/Newsman/newsman-api-php
require_once("Newsman/Client.php");
 
// you can get your API KEY, your newsman_user_id and list_id from My account -> API
$newsman_user_id = "your-username";
$api_key = "your-api-key";
$segment_id = "15001"; // The ID of the segment for which we add the subscriber
$subscriber_id = "127342"; // The ID of the subscriber to be added 
 
try {
	$client = new Newsman_Client($newsman_user_id, $api_key);
	$ret = $client->segment->addSubscriber($segment_id, $subscriber_id);
} catch (Exception $e) {
	//do something with the error, eg: log $e->getMessage()
}
 
return $ret;
 
?>

import newsman
 
user_id = "your_user_id"
api_key = "your_api_key"
segment_id = 15001
subscriber_id = 127342
 
client = newsman.Newsman(user_id, api_key)
client.segment.addSubscriber(segment_id,subscriber_id)

RESTClient client = new RESTClient("your_user_id", "your_api_key");
 
var _params = new NameValueCollection();
    _params["segment_id"] = "15001";
    _params["subscriber_id"] = "127342";
 
var response = client.CallMethod("segment", "addSubscriber", _params);