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Microsoft Agent Framework

Unified Python/.NET framework for multi-agent AI

open sourceupdated Jul 8, 2026

Microsoft Agent Framework is Microsoft's official unified SDK for building multi-agent AI workflows in Python and .NET. It consolidates Semantic Kernel and AutoGen into a single framework with MCP tool integration, graph-based workflows, human-in-the-loop patterns, and multi-agent orchestration. The framework reached Release Candidate status in February 2026 and is Microsoft's recommended path for production agent development.

Microsoft Agent Framework resolves the fragmentation between Microsoft's two previous agent projects by unifying Semantic Kernel's enterprise .NET capabilities with AutoGen's Python research-focused multi-agent patterns into a single coherent SDK. Teams no longer need to choose between the two — the framework provides a consistent API surface across both Python and C# that covers single-agent tool use, multi-agent coordination, human-in-the-loop approval workflows, and complex graph-based orchestration patterns.

The framework includes first-class MCP tool integration, allowing agents to discover and use external tools through the Model Context Protocol. Its orchestration layer supports multiple coordination patterns: sequential pipelines where agents hand off to each other, parallel execution for independent subtasks, and dynamic routing where a coordinator agent delegates to specialists based on the task. Built-in observability through OpenTelemetry provides tracing and metrics for debugging agent behavior in production.

With over 8,400 GitHub stars and Microsoft's full backing, the Agent Framework represents the enterprise-grade path for organizations building production AI agent systems. The RC status reached in February 2026 signals a stable API ahead of general availability. For teams already invested in the Microsoft ecosystem through Azure, .NET, or previous Semantic Kernel and AutoGen projects, this framework provides a clear migration path with long-term support and integration with Azure AI services.

Pricing

Free and open source under MIT license

Platforms

Python 3.10+ and .NET — Azure and local deployment

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FAQ

What is Microsoft Agent Framework?

Microsoft Agent Framework is Microsoft's official unified SDK for building multi-agent AI workflows in Python and .NET. It consolidates Semantic Kernel and AutoGen into a single framework with MCP tool integration, graph-based workflows, human-in-the-loop patterns, and multi-agent orchestration. The framework reached Release Candidate status in February 2026 and is Microsoft's recommended path for production agent development.

Is Microsoft Agent Framework free?

Yes — Microsoft Agent Framework is open source and free to use. Free and open source under MIT license

Is Microsoft Agent Framework open source?

Yes — Microsoft Agent Framework is open source.

What are the best Microsoft Agent Framework alternatives?

The top editor-verified Microsoft Agent Framework alternatives are AutoGen, Semantic Kernel.