Why it matters
- Widely used for RAG, agents, and tool use.
- Integrations with many LLM providers and vector stores.
- JS/TS and Python SDKs.
Key Specs
- Self-hosted: Yes (source).
- License: MIT.
LangChain
Framework for LLM applications
LLM FrameworksFree
Open-source framework for building chains, agents, and RAG applications with LLMs.
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