# List classes

Source: https://joinopenfile.com/docs/api/list-classes
Index: https://joinopenfile.com/llms.txt

`GET /api/v1/classes`

The classes small businesses file in most, with wording modelled on the USPTO ID Manual.

In the MCP server this is `list_classes`.

## Example

```bash
curl https://api.joinopenfile.com/v1/classes
```

## Response

`200`

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `object` | `list` | No | Always `list`. |
| `data` | array of object | No | The results. |