UFO
Microsoft's GUI agent that grew into UFO³ — orchestrating agents across Windows, Linux and mobile devices.
Microsoft's SDK for weaving LLMs into real applications, fast.
semantic-kernel is an open-source ai agents project by microsoft (microsoft/semantic-kernel on GitHub). It has 28,633 GitHub stars and 4,819 forks, is released under the MIT license, and was last updated on GitHub on 7 October 2026.
Choose one concrete task — narrow beats ambitious for a first run.
Fetch the source and skim the docs folder.
Set the environment variables or keys the project needs.
Execute the example workflow and watch what happens.
.NET, Python, and Java under one project.
Encapsulate capabilities as reusable plugins.
Let the model orchestrate multi-step plans.
Hook LLMs to your data stores.
Enterprise support and longevity signals.
Free for commercial products.
Download the source and move into the project folder.
git clone https://github.com/microsoft/semantic-kernel.git
cd semantic-kernelRestore NuGet packages and compile.
dotnet restore
dotnet buildLaunch via the .NET CLI.
dotnet runIt is an open-source project at microsoft/semantic-kernel with 4819 forks. Check the contributors tab and recent commits to judge how active maintenance is.
Yes — it's MIT licensed: free to use, modify, and ship commercially. Just keep the license notice in copies.
.NET (C#) first, plus Python and Java SDKs — all open source under one project.
No — it supports many model providers; Azure is just the home-field advantage.
Clone the repo and follow the README quickstart — the docs at https://aka.ms/semantic-kernel walk through setup.
Microsoft's GUI agent that grew into UFO³ — orchestrating agents across Windows, Linux and mobile devices.
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Free and open — grab the source, star the repo, and start creating.