Embodiments of the present invention improve the calendar invite experience by providing a unified interface for managing calendar invites, regardless of the originating calendar service/messaging provider. When a calendar invite is received, the relevant information (date, time, location, etc.) is parsed from the invite and presented to the user through a calendar invite user interface. The calendar invite user interface can include selectable icons or links allowing a user to accept/decline an invite. Invites are often sent in ICS files or as accept/decline links. Based on the user action, the appropriate message can be returned so that the calendars of the invitees and the organizer can be properly updated.