JUMP TOClear APIAuthenticationPermissionsRegionsList regionsgetGet region by webnamegetGet nearby regionsgetEventsGet event by IDgetGet events managed by someonegetGet events a user has access togetGet event registrationsgetGet event announcementsgetCreate event registrationpostRegistrationsGet registration by IDgetGet registrations by emailgetGet waiver linkgetSync waivergetSet parent infopostAdd a devicepostRegister attendeespostCheck in/out attendeepostPromotionsGet promotion by IDgetCreate promotionpostDelete promotionpostWebhooksRegistration.RegisterRegistration.CheckinRegistration.CheckoutPowered by Registration.CheckinThe Registration.Checkin webhook is fired when an attendee checks into their event. Payload is a Registration object.