Microsoft AutoGen
Agent framework by Microsoft
DiscontinuedOpen source · MITVerified Oct 22, 2026
Microsoft's open-source framework for multi-agent conversational AI applications. It is no longer maintained, and Microsoft directs users to Microsoft Agent Framework.
Key facts
- Type
- Agent framework · Library
- Pricing
- Free
- Free tier
- Free and open source. No paid tier.
- License
- MIT
- Models
- OpenAI, Azure OpenAI / Azure AI, Anthropic, Local models via Ollama and llama.cpp, Semantic Kernel connectors
- Languages
- Python, csharp
- Platforms
- macOS, Windows, Linux
- Bring your own API key
- Yes
- Local models
- Yes
- MCP support
- Yes
- Self-hostable
- Yes
- GitHub stars
- 61,522
- Last commit
- Oct 16, 2026
Best for
- Maintaining existing AutoGen applications while planning a migration
- Research and prototyping of multi-agent conversation patterns
- Studying the design that Microsoft Agent Framework and AG2 grew out of
Pros
- Mature multi-agent conversation patterns (AgentChat, group chat, teams)
- Python and .NET implementations
- Official migration guide to Microsoft Agent Framework
- Supports MCP tools and local models via Ollama/llama.cpp
Cons
- No bug fixes, security fixes, or new features from Microsoft
- Microsoft advises against production use
- Confusing lineage: AG2 (community fork) and Microsoft Agent Framework (official successor) both claim parts of the AutoGen legacy
Sources (10)
- status: https://github.com/microsoft/autogen
- status: https://github.com/microsoft/autogen/commit/004749e6
- status: https://learn.microsoft.com/en-us/agent-framework/migration-guide/from-autogen/
- license: https://github.com/microsoft/autogen/blob/main/LICENSE-CODE
- languages: https://github.com/microsoft/autogen/tree/main/dotnet
- languages: https://github.com/microsoft/autogen/tree/main/python
- modelsSupported: https://github.com/microsoft/autogen/tree/main/python/packages/autogen-ext/src/autogen_ext/models
- mcpSupport: https://github.com/microsoft/autogen/tree/main/python/packages/autogen-ext/src/autogen_ext/tools/mcp
- notes: https://github.com/ag2ai/ag2
- notes: https://github.com/microsoft/agent-framework