api.php

                'search' => array(

                    'type'    => 'Segment',
                    'options' => array(

                        'route'    => '/search',
                        'defaults' => array(

                            'controller' => 'domain.api',
                            'action'     => 'search',

                            'acl_resource' => 'authorized'
                        )
                    )
                ),