[Документация Yandex Cloud](../../../index.md) > [Yandex Managed Service for ClickHouse®](../../index.md) > Справочник API > [REST (англ.)](../index.md) > [Extension](index.md) > List

# Managed Service for ClickHouse API, REST: Extension.List

Lists extensions available in the specified folder.

## HTTP request

```
GET https://mdb.api.yandexcloud.kz/managed-clickhouse/v1/extensions
```

## Query parameters {#yandex.cloud.mdb.clickhouse.v1.ListExtensionsRequest}

#|
||Field | Description ||
|| pageSize | **string** (int64)

Maximum number of extensions to return per response.

The maximum value is 1000. ||
|| pageToken | **string**

Token for fetching the next page of results.

The maximum string length in characters is 100. ||
|| folderId | **string**

ID of the folder.

The maximum string length in characters is 50. ||
|#

## Response {#yandex.cloud.mdb.clickhouse.v1.ListExtensionsResponse}

**HTTP Code: 200 - OK**

```json
{
  "extensions": [
    {
      "name": "string",
      "versions": [
        {
          "id": "string",
          "default": "boolean",
          "deprecated": "boolean"
        }
      ]
    }
  ],
  "nextPageToken": "string"
}
```

#|
||Field | Description ||
|| extensions[] | **[Extension](#yandex.cloud.mdb.clickhouse.v1.Extension)**

Requested extensions. ||
|| nextPageToken | **string**

Token to retrieve the next page of results. ||
|#

## Extension {#yandex.cloud.mdb.clickhouse.v1.Extension}

#|
||Field | Description ||
|| name | **string**

Required field. Required. Extension name. ||
|| versions[] | **[ExtensionVersion](#yandex.cloud.mdb.clickhouse.v1.ExtensionVersion)**

Required. All extension available versions. ||
|#

## ExtensionVersion {#yandex.cloud.mdb.clickhouse.v1.ExtensionVersion}

#|
||Field | Description ||
|| id | **string**

Required field. Required. Version ID. ||
|| default | **boolean**

Is default version. ||
|| deprecated | **boolean**

Is version deprecated.
 ||
|#