LibreAI / AI Agents / semantic-kernel
// agents · microsoft/semantic-kernel

semantic-kernel

Microsoft's SDK for weaving LLMs into real applications, fast.

★ 28.6k stars⑂ 4.8k forksMITupdated 2026-10
▦ visual — this project's README ships no embeddable screenshot,
so here's a placeholder. The guide below is complete regardless.
// project facts

Project facts

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.

GitHub stars
28,633
Forks
4,819
License
MIT
Last updated on GitHub
7 October 2026
Category
AI Agents
Listing
Full install guide
Official site
Official site
// how it works

How it works

  1. Pick a use case

    Choose one concrete task — narrow beats ambitious for a first run.

  2. Clone and explore

    Fetch the source and skim the docs folder.

  3. Configure credentials

    Set the environment variables or keys the project needs.

  4. Launch your first run

    Execute the example workflow and watch what happens.

// features

Why people love it

Polyglot SDK

.NET, Python, and Java under one project.

Plugin architecture

Encapsulate capabilities as reusable plugins.

Planners

Let the model orchestrate multi-step plans.

Memory connectors

Hook LLMs to your data stores.

Microsoft-backed

Enterprise support and longevity signals.

MIT licensed

Free for commercial products.

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// run it

Run it yourself

  1. Step 1 — Clone the repo

    Download the source and move into the project folder.

    git clone https://github.com/microsoft/semantic-kernel.git
    cd semantic-kernel
  2. Step 2 — Restore and build

    Restore NuGet packages and compile.

    dotnet restore
    dotnet build
  3. Step 3 — Run it

    Launch via the .NET CLI.

    dotnet run
// use cases

What you can build

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// faq

Questions, answered

Who maintains semantic-kernel?

It 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.

Is semantic-kernel free to use?

Yes — it's MIT licensed: free to use, modify, and ship commercially. Just keep the license notice in copies.

Which languages are supported?

.NET (C#) first, plus Python and Java SDKs — all open source under one project.

Is it only for Azure OpenAI?

No — it supports many model providers; Azure is just the home-field advantage.

How do I get started?

Clone the repo and follow the README quickstart — the docs at https://aka.ms/semantic-kernel walk through setup.

// keep exploring

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// alternatives

Alternatives in AI Agents

The most-starred other AI Agents projects in the LibreAI catalogue — the realistic shortlist if semantic-kernel is not the right fit.

Get semantic-kernel

Free and open — grab the source, star the repo, and start creating.