Put

require_once('../yumpu.php');
$yumpu = new Yumpu();
$data = array(
    'username' => 'user8',
    'password' => 'f5bd63761dfd505514a7c94501825441',
    'comment' => 'user8',
    'access_tags' => 'zxeeYReHnxeg8RqZ'
);
$postMember = $yumpu->postMember($data);
print_r($postMember);

var yumpu = require('yumpu');
yumpu.setToken('yourToken');
var parameters = {
  username: 'user7',
  password: 'f5bd63761dfd505514a7c94501825441',
  comment: 'user8',
  access_tags: 'zxeeYReHnxeg8RqZ'
};
yumpu.postMember(parameters, function(statusCode, document){
   console.log('Status: ' + statusCode);
   console.log(document);
});

Yumpu y = new Yumpu("your access token");
String username = "user7";
String password = "mypassword";
String[] params = {"comment=user8"};
System.out.println(y.postMember(username, password, params));