# List metaobject definitions

> Retrieve a paginated list of metaobject definitions.

`GET /rest/api/metaobject_definitions`

Retrieves the collection of MetaobjectDefinition resources.

Returns a paginated collection of metaobject definitions - the custom object types defined in the current organization.

## Headers

| Name                         | Type     | Required | Description                                                                                                                                      |
| ---------------------------- | -------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| `X-Flowkiwi-Organization-Id` | `string` | Yes      | The organization the request acts as. Determines the identity, permissions and ownership applied when reading or modifying data on the instance. |

## Query parameters

| Name           | Type      | Required | Description                  |
| -------------- | --------- | -------- | ---------------------------- |
| `page`         | `integer` | -        | The collection page number   |
| `itemsPerPage` | `integer` | -        | The number of items per page |

## Response

**200** - MetaobjectDefinition collection

| Property           | Type                     | Required | Description |
| ------------------ | ------------------------ | -------- | ----------- |
| `hydra:totalItems` | `integer`                | -        |             |
| `hydra:search`     | `object`                 | -        |             |
| `hydra:view`       | `object`                 | -        |             |
| `hydra:member`     | `MetaobjectDefinition[]` | Yes      |             |

## Errors

**403** - Access denied. The caller is missing one or more identity permissions required for this operation.

| Property             | Type       | Required | Description                                                                                                                                |
| -------------------- | ---------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| `@context`           | `object`   | -        |                                                                                                                                            |
| `@id`                | `string`   | Yes      |                                                                                                                                            |
| `@type`              | `string`   | Yes      |                                                                                                                                            |
| `type`               | `string`   | -        |                                                                                                                                            |
| `title`              | `string`   | -        |                                                                                                                                            |
| `status`             | `integer`  | -        |                                                                                                                                            |
| `detail`             | `string`   | -        |                                                                                                                                            |
| `missingPermissions` | `string[]` | -        | Identity permissions that the caller is missing for this operation. Present only when the 403 is caused by a denied identity:* permission. |

## Examples

### Example request

```bash
curl -X GET 'https://<tenant>.product-management.flowkiwi.net/rest/api/metaobject_definitions' \
  -H 'Authorization: Bearer {token}' \
  -H 'X-Flowkiwi-Organization-Id: <org_id>' \
  -H 'Accept: application/ld+json'
```

### Example response

```json
{
  "@context": "/contexts/MetaobjectDefinition",
  "@id": "/rest/api/metaobject_definitions",
  "@type": "hydra:Collection",
  "hydra:totalItems": 1,
  "hydra:member": [
    {
      "@context": "/contexts/MetaobjectDefinition",
      "@id": "/rest/api/metaobject_definitions/019afc01-1a2b-7c3d-8e4f-0a1b2c3d4e5f",
      "@type": "MetaobjectDefinition",
      "id": "019afc01-1a2b-7c3d-8e4f-0a1b2c3d4e5f",
      "type": "size_guide",
      "name": "Size guide",
      "description": "Size charts shown on product pages.",
      "displayNameField": "title",
      "fieldDefinitions": [
        {
          "id": "019afc02-2b3c-7d4e-9f50-1a2b3c4d5e6f",
          "key": "title",
          "name": "Title",
          "description": "The size guide title.",
          "type": "/rest/api/metafield_definition_types/single_line_text_field",
          "required": true,
          "validations": []
        },
        {
          "id": "019afc03-3c4d-7e5f-8a60-2b3c4d5e6f70",
          "key": "body",
          "name": "Body",
          "description": "The size chart body.",
          "type": "/rest/api/metafield_definition_types/multi_line_text_field",
          "required": false,
          "validations": []
        }
      ],
      "createdAt": "2026-01-15T09:30:00+00:00",
      "updatedAt": "2026-02-03T14:45:12+00:00"
    }
  ]
}
```