# airflow-mcp-server: An MCP Server for controlling Airflow

### Find on Glama

<a href="https://glama.ai/mcp/servers/6gjq9w80xr">
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</a>

## Overview
A [Model Context Protocol](https://modelcontextprotocol.io/) server for controlling Airflow via Airflow APIs.

## Demo Video

https://github.com/user-attachments/assets/f3e60fff-8680-4dd9-b08e-fa7db655a705

## Setup

### Usage with Claude Desktop

```json
{
  "mcpServers": {
    "airflow-mcp-server": {
      "command": "uvx",
      "args": [
        "airflow-mcp-server"
      ],
      "env": {
        "AIRFLOW_BASE_URL": "http://<host:port>",
        "AUTH_TOKEN": "<jwt_access_token>"
      }
    }
  }
}
```

> **Note:**
> - Set `AIRFLOW_BASE_URL` to the root Airflow URL (e.g., `http://localhost:8080`).
> - Do **not** include `/api/v1` in the base URL. The server will automatically fetch the OpenAPI spec from `${AIRFLOW_BASE_URL}/openapi.json`.
> - Only `AUTH_TOKEN` (JWT) is required for authentication. Cookie and basic auth are no longer supported in Airflow 3.0.

### Operation Modes

The server supports two operation modes:

- **Safe Mode** (`--safe`): Only allows read-only operations (GET requests). This is useful when you want to prevent any modifications to your Airflow instance.
- **Unsafe Mode** (`--unsafe`): Allows all operations including modifications. This is the default mode.

To start in safe mode:
```bash
airflow-mcp-server --safe
```

To explicitly start in unsafe mode (though this is default):
```bash
airflow-mcp-server --unsafe
```

### Considerations

The MCP Server expects environment variables to be set:
- `AIRFLOW_BASE_URL`: The root URL of the Airflow instance (e.g., `http://localhost:8080`)
- `AUTH_TOKEN`: The JWT access token for authentication

**Authentication**

- Only JWT authentication is supported in Airflow 3.0. You must provide a valid `AUTH_TOKEN`.

**Page Limit**

The default is 100 items, but you can change it using `maximum_page_limit` option in [api] section in the `airflow.cfg` file.

## Tasks

- [ ] Airflow 3 readiness
- [ ] Parse OpenAPI Spec
- [x] Safe/Unsafe mode implementation
- [ ] Parse proper description with list_tools.
- [ ] Airflow config fetch (_specifically for page limit_)
- [ ] Env variables optional (_env variables might not be ideal for airflow plugins_)