LangChain & LangGraph
✓LangChain for LLM apps; LangGraph for stateful graph agents
AI Framework/Library
LangChain provides provider-agnostic LLM tooling, while LangGraph adds a graph-based runtime for controllable, stateful agents with human-in-the-loop, persistence, and streaming. Both are open source with Python/JS SDKs and a growing ecosystem of integrations and middleware.
Open Source
Key Features:
- •Provider-agnostic LLM tooling
- •Tool calling and structured outputs
- •LangGraph graph-based execution for agents
PythonJavaScript/TypeScript
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