---
title: Patch Auto-Origin TLS KEX enrollment status for the given zone
---

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[Auto Origin TLS Kex](https://developers.cloudflare.com/api/resources/ssl/subresources/auto%5Forigin%5Ftls%5Fkex)

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# Patch Auto-Origin TLS KEX enrollment status for the given zone

PATCH/zones/{zone\_id}/settings/auto\_origin\_tls\_kex

Enable or disable Auto-Origin TLS KEX selection for the zone by sending `{"enabled": true}` or `{"enabled": false}`. When enabled, Cloudflare runs a periodic scan of the zone’s origins to determine the preferred key-exchange algorithm and writes that preference to the edge so it is sent first in the TLS ClientHello to the origin.

##### Security

API Token

The preferred authorization scheme for interacting with the Cloudflare API. [Create a token](https://developers.cloudflare.com/fundamentals/api/get-started/create-token/).

**Example:**`Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY`

API Email + API Key

The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key.

**Example:**`X-Auth-Email: user@example.com`

The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys.

**Example:**`X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194`

##### Path ParametersExpand Collapse 

zone\_id: string

maxLength32

##### Body ParametersJSONExpand Collapse 

enabled: boolean

Controls enablement of Auto-Origin TLS KEX selection for the zone.

##### ReturnsExpand Collapse 

errors: array of [ResponseInfo](https://developers.cloudflare.com/api/resources/$shared#%28resource%29%20%24shared%20%3E%20%28model%29%20response%5Finfo%20%3E%20%28schema%29) { code, message, documentation\_url, source } 

code: number

minimum1000

message: string

documentation\_url: optional string

source: optional object { pointer } 

pointer: optional string

messages: array of [ResponseInfo](https://developers.cloudflare.com/api/resources/$shared#%28resource%29%20%24shared%20%3E%20%28model%29%20response%5Finfo%20%3E%20%28schema%29) { code, message, documentation\_url, source } 

code: number

minimum1000

message: string

documentation\_url: optional string

source: optional object { pointer } 

pointer: optional string

result: object { id, enabled, modified\_on } 

id: string

enabled: boolean

Whether Auto-Origin TLS KEX selection is enabled for the zone.

modified\_on: string

Last time this setting was modified.

formatdate-time

success: boolean

Indicates the API call’s success or failure.

### Patch Auto-Origin TLS KEX enrollment status for the given zone

HTTP

HTTPHTTP

TypeScriptTypeScript

PythonPython

GoGo

TerraformTerraform

```
curl https://api.cloudflare.com/client/v4/zones/$ZONE_ID/settings/auto_origin_tls_kex \
    -X PATCH \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
    -d '{
          "enabled": true
        }'
```

200 example

200 example

4XX example

```
{
  "errors": [],
  "messages": [],
  "result": {
    "enabled": false,
    "id": "auto_origin_tls_kex",
    "modified_on": "2014-01-01T05:20:00.12345Z"
  },
  "success": true
}
```

```
{
  "errors": [],
  "messages": [],
  "result": {
    "enabled": true,
    "id": "auto_origin_tls_kex",
    "modified_on": "2014-01-01T05:20:00.12345Z"
  },
  "success": true
}
```

```
{
  "errors": [
    {
      "code": 1009,
      "message": "Missing field 'enabled' in JSON body"
    }
  ],
  "messages": [],
  "result": {
    "enabled": false,
    "id": "auto_origin_tls_kex",
    "modified_on": "2014-01-01T05:20:00.12345Z"
  },
  "success": false
}
```

##### Returns Examples

200 example

200 example

4XX example

```
{
  "errors": [],
  "messages": [],
  "result": {
    "enabled": false,
    "id": "auto_origin_tls_kex",
    "modified_on": "2014-01-01T05:20:00.12345Z"
  },
  "success": true
}
```

```
{
  "errors": [],
  "messages": [],
  "result": {
    "enabled": true,
    "id": "auto_origin_tls_kex",
    "modified_on": "2014-01-01T05:20:00.12345Z"
  },
  "success": true
}
```

```
{
  "errors": [
    {
      "code": 1009,
      "message": "Missing field 'enabled' in JSON body"
    }
  ],
  "messages": [],
  "result": {
    "enabled": false,
    "id": "auto_origin_tls_kex",
    "modified_on": "2014-01-01T05:20:00.12345Z"
  },
  "success": false
}
```