# LangGraph (by LangChain)
> LangGraph is a library designed for building stateful, multi-agent applications with LLMs, extending the LangChain expression language to support cyclic computational graphs. It enables developers to create complex agentic workflows with fine-grained control over state, persistence, and human-in-the-loop interactions.
- URL: https://optimly.ai/brand/langchain-langgraph
- Slug: langchain-langgraph
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## Full Details / RAG Data
### Overview
LangGraph (by LangChain) is listed in the AI Directory.
LangGraph is a library designed for building stateful, multi-agent applications with LLMs, extending the LangChain expression language to support cyclic computational graphs. It enables developers to create complex agentic workflows with fine-grained control over state, persistence, and human-in-the-loop interactions.
### Metadata
| Field       | Value |
|-------------|-------|
| Name        | LangGraph (by LangChain) |
| Slug        | langchain-langgraph |
| URL         | https://optimly.ai/brand/langchain-langgraph |
| Last Updated | 2026-03-21T04:04:23.747Z |
### Links
- Canonical page: https://optimly.ai/brand/langchain-langgraph
- JSON endpoint: /brand/langchain-langgraph.json
- LLMs.txt: /brand/langchain-langgraph/llms.txt