Outlook Calendar API
The Outlook Calendar API is a RESTful web service provided by Microsoft that allows developers to programmatically access and manipulate calendar data in Outlook and Microsoft 365. It enables integration of calendar functionality into applications, such as creating events, managing attendees, and retrieving availability. The API supports both Microsoft Graph (the modern unified endpoint) and the older Outlook REST API, offering features like event synchronization, reminders, and time zone handling.
Developers should learn the Outlook Calendar API when building applications that need to integrate with Microsoft 365 or Outlook calendars, such as scheduling tools, meeting assistants, or productivity apps. It is particularly useful for automating calendar management, syncing events across platforms, or implementing features like meeting room booking and availability checks in enterprise environments. Use cases include CRM integrations, travel planning apps, and team collaboration software that leverage calendar data.