LiveWhale includes built-in support for basic RSVP registration for events. Event administrators can use this feature to request additional information from users signing up for an event, and can also place a cap on the number of users who can sign up for an event before registration automatically closes.
Should you wish to accept online payments for an event, LiveWhale has built-in e-commerce via the secure and highly-regarded gateway Stripe. It’s really easy to setup. (And we’re not kidding — they have applied as much thought to processing payments as we have to higher education content management.)