# dev

> **Function** in `langgraph_cli`

📖 [View in docs](https://reference.langchain.com/python/langgraph-cli/cli/dev)

CLI entrypoint for running the LangGraph API server.

## Signature

```python
dev(
    host: str,
    port: int,
    no_reload: bool,
    config: str,
    n_jobs_per_worker: int | None,
    no_browser: bool,
    debug_port: int | None,
    wait_for_client: bool,
    studio_url: str | None,
    allow_blocking: bool,
    tunnel: bool,
    server_log_level: str,
)
```

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[View source on GitHub](https://github.com/langchain-ai/langgraph/blob/0a26b471d34da94186bee8c48d0c463b5a3bd0a0/libs/cli/langgraph_cli/cli.py#L656)