---
title: Set Pre-Shared Keys (PSK) for IPsec tunnels
---

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

[Magic Transit](https://developers.cloudflare.com/api/resources/magic%5Ftransit)

[IPSEC Tunnels](https://developers.cloudflare.com/api/resources/magic%5Ftransit/subresources/ipsec%5Ftunnels)

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# Set Pre-Shared Keys (PSK) for IPsec tunnels

POST/accounts/{account\_id}/magic/ipsec\_tunnels/psk

Sets Pre-Shared Keys for multiple IPsec tunnels associated with an account. Use `?validate_only=true` as an optional query parameter to only run validation without persisting changes. After PSKs are applied, they are immediately persisted to Cloudflare’s edge and cannot be retrieved later. Store the PSKs in a safe place.

##### 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`

##### Accepted Permissions (at least one required)

`Magic WAN Write` `Magic Transit Write`

##### Path ParametersExpand Collapse 

account\_id: string

Identifier

maxLength32

##### Query ParametersExpand Collapse 

validate\_only: optional boolean

If `true`, only run validation without persisting changes.

##### Body ParametersJSONExpand Collapse 

psks: array of object { id, psk } 

List of tunnel ID and PSK pairs.

id: string

The ID of the IPsec tunnel.

maxLength32

psk: string

A randomly generated or provided string for use in the IPsec tunnel.

##### 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 { successfully\_applied\_psks, unapplied\_psks } 

successfully\_applied\_psks: optional map\[object { ipsec\_id, ipsec\_tunnel\_id, psk, psk\_metadata } \]

Map of tunnel IDs to successfully applied PSK details.

ipsec\_id: string

The IKE identifier used for this tunnel on the Cloudflare edge.

ipsec\_tunnel\_id: string

Identifier

maxLength32

psk: string

A randomly generated or provided string for use in the IPsec tunnel.

psk\_metadata: [PSKMetadata](https://developers.cloudflare.com/api/resources/magic%5Ftransit#%28resource%29%20magic%5Ftransit.ipsec%5Ftunnels%20%3E%20%28model%29%20psk%5Fmetadata%20%3E%20%28schema%29) { last\_generated\_on } 

The PSK metadata that includes when the PSK was generated.

last\_generated\_on: optional string

The date and time the tunnel was last modified.

formatdate-time

unapplied\_psks: optional map\[string\]

Map of tunnel IDs to failure reasons for PSKs that could not be applied.

success: true

Whether the API call was successful

### Set Pre-Shared Keys (PSK) for IPsec tunnels

HTTP

HTTPHTTP

TypeScriptTypeScript

PythonPython

GoGo

TerraformTerraform

```
curl https://api.cloudflare.com/client/v4/accounts/$ACCOUNT_ID/magic/ipsec_tunnels/psk \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
    -d '{
          "psks": [
            {
              "id": "023e105f4ecef8ad9ca31a8372d0c353",
              "psk": "O3bwKSjnaoCxDoUxjcq4Rk8ZKkezQUiy"
            }
          ]
        }'
```

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"
      }
    }
  ],
  "result": {
    "successfully_applied_psks": {
      "foo": {
        "ipsec_id": "12345_abc123def4567890abcdef1234567890",
        "ipsec_tunnel_id": "023e105f4ecef8ad9ca31a8372d0c353",
        "psk": "O3bwKSjnaoCxDoUxjcq4Rk8ZKkezQUiy",
        "psk_metadata": {
          "last_generated_on": "2017-06-14T05:20:00Z"
        }
      }
    },
    "unapplied_psks": {
      "foo": "string"
    }
  },
  "success": true
}
```

##### 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"
      }
    }
  ],
  "result": {
    "successfully_applied_psks": {
      "foo": {
        "ipsec_id": "12345_abc123def4567890abcdef1234567890",
        "ipsec_tunnel_id": "023e105f4ecef8ad9ca31a8372d0c353",
        "psk": "O3bwKSjnaoCxDoUxjcq4Rk8ZKkezQUiy",
        "psk_metadata": {
          "last_generated_on": "2017-06-14T05:20:00Z"
        }
      }
    },
    "unapplied_psks": {
      "foo": "string"
    }
  },
  "success": true
}
```