Best Anthropic Agent SDK Alternatives
118 frameworks you can use instead of Anthropic Agent SDK. Ranked by popularity, tag overlap, and live GitHub signals.
anthropicclaudemcptool-usepythonagents
A
Anthropic Agent SDK
ReferenceClaude-native agent framework with built-in MCP and tool use — 4.6K stars
3.5K2.5M/w3d ago56
Top Alternatives to Anthropic Agent SDK
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FastMCP
Fast, Pythonic framework for building Model Context Protocol servers and clients
OSSFree
Prefect
4 shared tags
f
fastmcp
Pythonic framework for building MCP servers and clients with minimal boilerplate
OSSFree
Prefect
4 shared tags
R
RAGFlow
Open-source RAG engine with agent capabilities, GraphRAG, and MCP integration
OSSFree
InfiniFlow
4 shared tags
A
Agno
Build, run, and manage agentic software at scale with 38K+ stars
OSSFree
Agno AGI
40.4Ktoday436
3 shared tags
F
FastMCP
The fast, Pythonic way to build MCP servers — 24K+ stars
OSSFree
Prefect
25.3Ktoday238
3 shared tags