microsoft/autogen
A programming framework for agentic AI
autogen is an open source Python project by microsoft, created in August 2023. It has 61,508 stars and 9,304 forks on GitHub and is released under the CC-BY-4.0 license. Its most recent commit was on Oct 16, 2026, and it has 561 open issues, 3 of them labelled “good first issue”, which makes it a friendly place to start contributing. Its GitHub topics include chatgpt, llm-agent, llm-framework, and agentic. On FindOpenSource.dev it is listed under AI Agents.
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by NousResearch
The agent that grows with you
by langchain-ai
The agent engineering platform.
by browser-use
Open-source Python library for AI browser agents, plus Browser Use Cloud: stealth browsers and a hosted agent API.
