Verify user is Eventbrite attendee when creating new WordPress account

This is a very broad question. As @andrew pointed out, you need to work with the API at http://developer.eventbrite.com/ to parse member lists with the API during the registration process in WordPress.

But, eventbrite says that “Currently there is no way to search for a specific attendee with event_list_attendees.” https://stackoverflow.com/questions/15366606/verifying-a-single-attendee-with-email

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