Build powerful apps for hundreds of millions of users using one set of APIs

Build powerful apps for hundreds of millions of users using one set of APIs

Reach users across web, Windows, Mac and mobile

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REST APIs

Bring mail, calendars, and contacts data for Office 365 and Outlook.com users into your app.

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Add-ins

Bring your features right into the user's Outlook experience on phones, tablets, desktops, and the web.

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Actionable Messages

Let your apps and services take a front seat in Outlook and Teams with Actionable Messages.

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What's new in Outlook Dev Center?

New Outlook APIs in the Microsoft Graph: rooms, rules, categories, headers, and time zones

Today we're excited to announce new Outlook APIs have been added to the Microsoft Graph.

Upcoming change to Event schema in the Outlook REST API beta endpoint

We wanted to give you a heads-up on upcoming changes to how locations are exposed for events in the Outlook REST API.

Throttling coming to Outlook API and Microsoft Graph

On April 21, we will be enabling throttling on the Outlook REST APIs (accessed via https://outlook.office.com/api or...

Add ins are now available for all Outlook on Mac users

Add-ins bring your favorite apps right inside Outlook, so you can accomplish tasks quickly without needing to switch...

Add-ins are now available for Outlook on iOS

We’re now excited to bring add-ins to Outlook mobile, starting with Outlook on IOS, with support for Android coming...

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Platforms we support



Android

Android

Angular

Angular

ASP.NET MVC

ASP.NET MVC

iOS

iOS

JavaScript

JavaScript

PHP

PHP

Python

Python

Ruby

Ruby

Windows Universal

UWP

Xamarin

Xamarin

and everything else...


* The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License.

See all the featured integrations



Evernote

Evernote

Wunderlist

Wunderlist

Yelp

Yelp

Boomerang

Boomerang

PayPal

PayPal

Uber

Uber