At the Build 2025 developer conference, Microsoft announced a new set of App Actions APIs for Windows, enabling applications to contextually integrate with the operating system's interface.

App Actions will appear in the Click to Do interface (and potentially other OS areas in the future) when right-clicking the screen. Depending on what's currently displayed, Windows will contextually suggest relevant tasks.

Using the App Actions API, developers can integrate their applications into this interface and offer context-aware actions. For example, when viewing a photo, Windows might suggest image editing options. Alongside built-in apps, this list will display third-party applications that implement the App Actions API.

Microsoft is collaborating with multiple developers including Zoom, Todoist, Raycast and Spark Mail to implement App Actions support. The feature is known to leverage Windows 11's newly announced Model Context Protocol support.

The App Actions API is now available in Windows SDK version 10.0.26100.4188.

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