# langchain

**Licence:** MIT  |  **Language:** Python  |  **Source:** https://github.com/langchain-ai/langchain

## Role in the stack

LLM application framework

## Why it's here

Composable chains, tool calling and integrations across providers. Useful when your pipeline needs to branch or call tools.

## Using it

See the project README in the fetched source:

```bash
./fetch-sources.sh ./sources
tar xzf ./sources/langchain.tar.gz -C ./sources
```

This component is a library, not a service - install it into your own application environment.