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Microsoft Graph REST APIs for mail, calendars, and contacts

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Find information about the Microsoft Graph APIs that you can use to access mail, calendars, and contacts in Office 365, Exchange Online, or Exchange Server in hybrid deployments.

Office 365, Exchange Online, and Exchange Server in hybrid deployments provide a new way to work with email, calendars, and contacts. The Microsoft Graph Mail, Calendar, and Contact REST APIs provide a powerful, easy-to-use way to access and manipulate Exchange data. These APIs are based on open standards: OAuth version 2.0 for authentication, and OData version 4.0 and JSON for data abstraction. This provides the following advantages:

  • Because these APIs require OAuth for authentication, your application does not have to handle or store user credentials.

  • OAuth makes it possible to request tightly scoped permissions to user data. For example, you might design your application to request permission and read only a user's calendar.

Work with email and mail folders

You can use the Mail API to get, create, update, delete, move, copy, and send email. You can also get, create, update, and delete mail folders.

Work with events, calendars, and calendar groups

You can use the Calendar API to get, create, update, and delete events. You can also get, create, update, and delete calendar groups and calendars.

Work with contacts and contact folders

You can use the Contacts API to get, create, update, and delete contacts in a user's mailbox. You can also get contact folders.

Next steps

Head over to the Microsoft Graph documentation page to get more information about the Mail, Calendar, and Contacts APIs, including guidance for setting up your environment and getting started with the APIs.

Also be sure to check out the quick starts and code samples to see these APIs in action.

See also