---
title: Change Origin TLS Compliance Modes setting
---

[Skip to content](#%5Ftop) 

[API Reference](https://developers.cloudflare.com/api)

[Origin TLS Compliance Modes](https://developers.cloudflare.com/api/resources/origin%5Ftls%5Fcompliance%5Fmodes)

Copy Markdown

Open in **Claude**

Open in **ChatGPT**

Open in **Cursor**

---

**Copy Markdown**

**View as Markdown**

# Change Origin TLS Compliance Modes setting

PATCH/zones/{zone\_id}/settings/origin\_tls\_compliance\_modes

Update the set of TLS compliance modes for the zone. PATCH performs a full replace of the modes list, not a merge — the request body is treated as the complete new list, and any modes not present in it are removed. (To remove a single mode from an existing configuration, send the updated list without it.) The request body must be of the form `{"value": ["fips", "pqh"]}`. Currently supported modes are `fips` and `pqh`; an empty list clears the constraint. Future modes (e.g. `cnsa2`) may be added; clients should treat unknown values as opaque strings. Invalid mode values are rejected with a 4xx response.

##### 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

Identifier.

maxLength32

##### Body ParametersJSONExpand Collapse 

value: array of string

List of TLS compliance modes that constrain the key-exchange algorithms Cloudflare may use when establishing the TLS connection to the zone’s origin. Currently supported values are `fips` (FIPS-approved curves) and `pqh` (post-quantum hybrid). Future modes (e.g. `cnsa2`) may be added; clients should treat unknown values as opaque strings. Multiple modes are combined as the intersection of their permitted algorithm lists; selections whose intersection is empty are rejected. An empty list clears the constraint.

##### 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

success: true

Whether the API call was successful.

result: optional object { id, editable, value, modified\_on } 

id: "origin\_tls\_compliance\_modes"

The identifier of the caching setting.

editable: boolean

Whether the setting is editable.

value: array of string

List of TLS compliance modes that constrain the key-exchange algorithms Cloudflare may use when establishing the TLS connection to the zone’s origin. Currently supported values are `fips` (FIPS-approved curves) and `pqh` (post-quantum hybrid). Future modes (e.g. `cnsa2`) may be added; clients should treat unknown values as opaque strings. Multiple modes are combined as the intersection of their permitted algorithm lists; selections whose intersection is empty are rejected. An empty list clears the constraint.

modified\_on: optional string

Last time this setting was modified.

formatdate-time

### Change Origin TLS Compliance Modes setting

HTTP

HTTPHTTP

TypeScriptTypeScript

PythonPython

GoGo

TerraformTerraform

```
curl https://api.cloudflare.com/client/v4/zones/$ZONE_ID/settings/origin_tls_compliance_modes \
    -X PATCH \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
    -d '{
          "value": [
            "fips",
            "pqh"
          ]
        }'
```

200 example

```
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "id": "origin_tls_compliance_modes",
    "editable": true,
    "value": [
      "fips",
      "pqh"
    ],
    "modified_on": "2014-01-01T05:20:00.12345Z"
  }
}
```

##### Returns Examples

200 example

```
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "id": "origin_tls_compliance_modes",
    "editable": true,
    "value": [
      "fips",
      "pqh"
    ],
    "modified_on": "2014-01-01T05:20:00.12345Z"
  }
}
```