Core Services | Apple Developer Documentation Archived: 2026-04-06 03:22:57 UTC Framework Core Services Access and manage key operating system services, such as launch and identity services. iOS 12.0+iPadOS 12.0+Mac Catalyst 13.0+macOS 10.0+tvOS 12.0+visionOS 1.0+watchOS 5.0+ Overview This collection of documents provides the API reference for the Core Services framework, which encompasses many fundamental operating system services used by Carbon applications. Topics Reference Apple Events Communicate messages across process boundaries that can be performed and responded to with a reply event. Backup Core Access low-level details about file and folder settings used by the macOS Backup utility. Launch Services Launch and open documents in other apps from your current app process. File Metadata Search for files based on data that is part of the file or file system. OS Services Interact with operating system services, including user and group accounts and power management. Search Kit Index and search natural language documents. https://developer.apple.com/documentation/coreservices Page 1 of 2 Source: https://developer.apple.com/documentation/coreservices https://developer.apple.com/documentation/coreservices Page 2 of 2