---
title: "Set cluster authentication mode"
slug: "nks-updateauthtype"
updated: 2026-09-17T10:05:54Z
published: 2026-09-17T10:05:54Z
canonical: "api.ncloud-docs.com/nks-updateauthtype"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Set cluster authentication mode

Available in VPC

Edit the authentication mode for a created cluster. Once set to API authentication mode, the cluster authentication mode setting can't be turned off or changed.

## Request

This section describes the request format. The method and URI are as follows:

| Method | URI |
| --- | --- |
| PATCH | /vnks/v2/clusters/{uuid}/auth-type (Korea Region) |
| PATCH | /vnks/sgn-v2/clusters/{uuid}/auth-type (Singapore Region) |
| PATCH | /vnks/jpn-v2/clusters/{uuid}/auth-type (Japan Region) |

### Request headers

For headers common to all Ncloud Kubernetes Service APIs, see [Common Ncloud Kubernetes Service headers](/docs/en/compute-vpckubernetesservice#%EC%9A%94%EC%B2%AD%ED%97%A4%EB%8D%94).

### Request path parameters

You can use the following path parameters with your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `uuid` | String | Required | Cluster's UUID - See [Get cluster list](/docs/en/nks-getclusterlist). |

### Request syntax

The request syntax is as follows:

```
{
  "authType": "string"
}
```

### Request body

You can include the following data in the body of your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `authType` | String | Required | Cluster authentication method - `API` \| `CONFIG_MAP` |

### Request example

The request example is as follows:

```
curl --location --request PATCH 'https://nks.apigw.ntruss.com/vnks/v2/clusters/{uuid}/auth-type' \
--header 'x-ncp-apigw-timestamp: {timestamp}' \
--header 'x-ncp-iam-access-key: {access key}' \
--header 'x-ncp-apigw-signature-v2: {API gateway signature}' \
--data '{
  "authType": "API"
}'
```

## Response

This section describes the response format.

### Response syntax

The response syntax is as follows:

```
{
    "uuid": "string"
}
```

### Response body

The response body includes the following data:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `uuid` | String | - | UUID of the cluster |

### Response status codes

For information about the HTTP status codes common to all Ncloud Kubernetes Service APIs, see [Ncloud Kubernetes Service response status codes](/docs/en/compute-vpckubernetesservice#%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C).

### Response example

The response example is as follows:

```
{
    "uuid": "****a20e-e0fb-4dc9-af1b-97fd3f8d****"
}
```