Eventbrite Event Registration on your site and API syncing to show Attendees on site.
OFFICIAL SUPPORT - Eventbrite for Pods - Support Forums: http://scottkclark.com/forums/eventbrite-for-pods/
This plugin requires the Pods CMS Framework plugin to be installed and activated - http://wordpress.org/extend/plugins/pods/
All you do is install the plugin, go into WP Admin and setup your API settings, add the events (referencing their corresponding Event IDs on Eventbrite) and sync up. Then add the shortcode