LangChain alternatives

12 other agent frameworks listed here. LangChain is open source.

Featured

CrewAI

Agent frameworks

Multi-agent framework built around role-based crews

Open sourcemulti-agentpython

Agno

Agent frameworks

Python framework for agents with memory and knowledge

Open sourcepythonmulti-agent

AutoGen

Agent frameworks

Microsoft's framework for multi-agent conversations

Open sourcemulti-agentmicrosoft

Google Agent Development Kit

Agent frameworks

Google's open source toolkit for building agents

Open sourcegooglesdk

Haystack

Agent frameworks

deepset's open source framework for RAG and agents

Open sourceragpipelines

LangGraph

Agent frameworks

Graph-based runtime for stateful agents

Open sourcegraphstateful

LlamaIndex

Agent frameworks

Data framework for LLM apps and document agents

Open sourceragdata

Mastra

Agent frameworks

TypeScript framework for AI agents and workflows

Open sourcetypescriptworkflows

OpenAI Agents SDK

Agent frameworks

Lightweight Python SDK for multi-agent workflows

Open sourcesdkopenai

Pydantic AI

Agent frameworks

Type-safe Python agent framework from the Pydantic team

Open sourcepythontyping

Semantic Kernel

Agent frameworks

Microsoft SDK for AI agents in C#, Python and Java

Open sourcesdkmicrosoft

smolagents

Agent frameworks

Minimal Hugging Face library where agents write code

Open sourcehuggingfacecode-agents