## List categories

`GET https://getkollek.com/api/collections/{collection}/categories`

Retrieve the categories of a collection. A category groups items within a collection, e.g. Marvel within a comics collection, and can be nested.

**Permissions:** Any member of the account.

### Path parameters

- `collection` (integer, required): The ID of the collection the category belongs to.

### Query parameters

- `per_page` (integer, optional): The number of categories to return per page, between 1 and 100. Default: `10`.
- `page` (integer, optional): The page number to return. Default: `1`.

**Returns:** A paginated list of category objects.

### Example request

```bash
curl https://getkollek.com/api/collections/1/categories \
  -H "Authorization: Bearer $API_KEY" \
  -H "Accept: application/json"
```

### Example response

`Status: 200`

```json
{
    "data": [
        {
            "type": "category",
            "id": "1",
            "attributes": {
                "name": "Marvel",
                "description": "Key issues and full runs from the 1990s Marvel era.",
                "collection_id": "1",
                "parent_id": null,
                "created_at": 1752537600,
                "updated_at": 1752537600
            },
            "links": {
                "self": "https://getkollek.com/api/collections/1/categories/1"
            }
        },
        {
            "type": "category",
            "id": "2",
            "attributes": {
                "name": "Spider-Man",
                "description": null,
                "collection_id": "1",
                "parent_id": "1",
                "created_at": 1752537600,
                "updated_at": 1752537600
            },
            "links": {
                "self": "https://getkollek.com/api/collections/1/categories/2"
            }
        }
    ],
    "links": {
        "first": "https://getkollek.com/api/collections/1/categories?page=1",
        "last": "https://getkollek.com/api/collections/1/categories?page=1",
        "prev": null,
        "next": null
    },
    "meta": {
        "current_page": 1,
        "from": 1,
        "last_page": 1,
        "links": [
            {
                "url": null,
                "label": "« Previous",
                "active": false
            },
            {
                "url": "https://getkollek.com/api/collections/1/categories?page=1",
                "label": "1",
                "active": true
            },
            {
                "url": null,
                "label": "Next »",
                "active": false
            }
        ],
        "path": "https://getkollek.com/api/collections/1/categories",
        "per_page": 10,
        "to": 2,
        "total": 2
    }
}
```