Which is more popular, A2A or AutoGen?

AutoGen has more GitHub stars (61,253 vs 25,989).

Which is more actively developed, A2A or AutoGen?

A2A had more commits in the last 90 days (56 vs 0).

Compare their capabilities, limitations and "best for" notes above. Trying each on a small task is the fastest way to decide.

Side-by-side comparison of two AI agent tools

AutoGen is growing faster: +787 GitHub stars in the last 30 days vs +496 for A2A.
Pick A2A for: agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic. Pick AutoGen for: a programming framework for agentic AI.

From GitHub data refreshed daily.

A2Aopen-source

Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.

A programming framework for agentic AI

+Standardized protocol enabling interoperability between different agentic systems regardless of implementation
+Strong community adoption with 22,866 GitHub stars and comprehensive multi-language documentation support
+Open source with Apache 2.0 license and Python SDK available on PyPI for easy integration

-May require significant refactoring of existing agent systems to adopt the protocol
-Potential performance overhead when routing communications through the protocol layer

•Multi-agent systems where specialized agents need to coordinate and share information across different platforms
•Enterprise environments with various AI tools that need to communicate and collaborate on complex workflows
•Distributed agent networks where agents from different organizations or vendors must interoperate

Which is more popular, A2A or AutoGen?: AutoGen has more GitHub stars (61,253 vs 25,989).
Which is more actively developed, A2A or AutoGen?: A2A had more commits in the last 90 days (56 vs 0).
Should I use A2A or AutoGen?: Compare their capabilities, limitations and "best for" notes above. Trying each on a small task is the fastest way to decide.