Directory · Agents
Semantic Kernel
Microsoft's open-source SDK for integrating LLMs into .NET, Python, and Java apps with plugins, planners, and agents.
Best for
Enterprise developers adding AI orchestration to existing .NET or Java codebases
More agents tools
AutoGen
Agents · Microsoft · United States
Microsoft's open-source framework for building multi-agent AI systems where agents converse and cooperate to solve tasks.
Best for
Multi-agent research and orchestration experiments in Python or .NET
AutoGPT
Agents · Significant Gravitas · United Kingdom
Open-source platform for building and running autonomous AI agents that chain reasoning steps toward user-defined goals.
Best for
Experimenting with autonomous goal-driven agents and low-code agent blocks
Claude Agent SDK
Agents · Anthropic · United States
Anthropic's SDK for building autonomous agents on the harness behind Claude Code, with tool use, hooks, and MCP support.
Best for
Building custom coding or computer-using agents powered by Claude