ApiPlugin.php

<?php

    /**
     * Register site routes.
     *
     * @return array
     */
    public function registerSiteRoutes()
    {
        return array(
            'api' => array(
                'action' => 'api/index'
            ),
            'api/entries' => array(
                'action' => 'api/entries/all'
            )
        );
    }