CrewAI vs Microsoft Agent Framework

CrewAI and Microsoft Agent Framework are both agent frameworks for Python. CrewAI is published by CrewAI and Microsoft Agent Framework by Microsoft. On GitHub, CrewAI has 60,066 stars and Microsoft Agent Framework has 14,302. Both were last active in Oct 2026. The table lines up where they differ (publisher, weekly downloads and languages) and has the install commands for both. Everything here comes from the listings' public sources and is refreshed daily. CrewAI describes itself as: Open-source Python framework for multi-agent workflows, with role-based Crews and event-driven Flows. Microsoft Agent Framework: Open framework for building and hosting production-grade AI agents and multi-agent workflows in .NET and Python. Licenses: CrewAI MIT, Microsoft Agent Framework MIT.