# LangGraph examples

This folder contains examples demonstrating stateful workflows and agent routing with LangGraph.

## Requirements

- [Python](https://www.python.org/) 3.10+
- An [OpenAI API key](https://platform.openai.com/api-keys) set as an environment variable (`OPENAI_API_KEY`)

## Examples

- `basic_agent/`: Basic single-node stateful graph agent.
- `review_workflow/`: Graph workflow with explicit review states.
- `checkpointed_resume/`: Resuming graph runs from saved checkpoints.
- `human_in_the_loop/`: Pausing graph execution for human approval.
- `multi_agent_router/`: Routing execution across multiple specialized agents.

## Running the examples

Each example is in its own folder and contains a `README.md` with instructions on how to run it.