builder
AutoGen
Microsoft's open-source framework for multi-agent AI apps, now in maintenance mode.
microsoft.github.io/autogen ↗API · CLI
AutoGen is in maintenance mode; its README points new users to Microsoft Agent Framework.
what it is
AutoGen is an open-source Microsoft framework for building multi-agent AI applications that can act on their own or work alongside humans. It is now in maintenance mode: it won't get new features, and Microsoft points new projects to Microsoft Agent Framework.
who it's for
Python developers maintaining existing AutoGen projects; new projects should look at Microsoft Agent Framework.
how to start
- 1Read the docs at microsoft.github.io/autogen.
- 2Install the Python packages with pip (see the README for the current package names).
- 3Add your model provider's API key.
- 4For new work, consider Microsoft Agent Framework (github.com/microsoft/agent-framework).
what you need
- Python
- An LLM API key
pricing
Free and open source
You pay your model provider for any API usage
checked Oct 10, 2026
key features
- Multi-agent conversations
- Agents that act alone or with humans
- Open source
- Maintenance mode: bug fixes only
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