> For the complete documentation index, see [llms.txt](https://docs.guardianservice.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/schema-creation-using-apis/previews-list-of-schemas-duplicates.md).

# Previews list of schemas duplicates

<mark style="color:green;">POST</mark> `/schemas/import/schemas/duplicates`

Previews list of schema duplicates. Only users with the Standard Registry role are allowed to make the request.

**Headers**

| Name          | Value              |
| ------------- | ------------------ |
| Content-Type  | `application/json` |
| Authorization | `Bearer <token>`   |

**Body**

| Name        | Type   | Description  |
| ----------- | ------ | ------------ |
| schemaNames | string | Schema Names |
| policyId    | string | Policy ID    |

**Response**

{% tabs %}
{% tab title="200" %}

```json5
{
description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InternalServerErrorDTO'
  }
```

{% endtab %}

{% tab title="401" %}

```json5
{
   description: Unauthorized.
}
```

{% endtab %}

{% tab title="403" %}

```json5
{
description: Forbidden.
}
```

{% endtab %}

{% tab title="500" %}

```json5
{
description: Internal server error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InternalServerErrorDTO'
  }
```

{% endtab %}
{% endtabs %}