## Get a short-lived certificate CA

**get** `/{accounts_or_zones}/{account_or_zone_id}/access/apps/{app_id}/ca`

Fetches a short-lived certificate CA and its public key.

### Path Parameters

- `app_id: string`

  UUID.

- `account_id: optional string`

  The Account ID to use for this endpoint. Mutually exclusive with the Zone ID.

- `zone_id: optional string`

  The Zone ID to use for this endpoint. Mutually exclusive with the Account ID.

### Returns

- `errors: array of object { code, message, documentation_url, source }`

  - `code: number`

  - `message: string`

  - `documentation_url: optional string`

  - `source: optional object { pointer }`

    - `pointer: optional string`

- `messages: array of object { code, message, documentation_url, source }`

  - `code: number`

  - `message: string`

  - `documentation_url: optional string`

  - `source: optional object { pointer }`

    - `pointer: optional string`

- `success: true`

  Whether the API call was successful.

  - `true`

- `result: optional CA`

  - `id: optional string`

    The ID of the CA.

  - `aud: optional string`

    The Application Audience (AUD) tag. Identifies the application associated with the CA.

  - `public_key: optional string`

    The public key to add to your SSH server configuration.

### Example

```http
curl https://api.cloudflare.com/client/v4/$ACCOUNTS_OR_ZONES/$ACCOUNT_OR_ZONE_ID/access/apps/$APP_ID/ca \
    -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN"
```

#### Response

```json
{
  "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": "7eddae4619b50ab1361ba8ae9bd72269a432fea041529ed9",
    "aud": "737646a56ab1df6ec9bddc7e5ca84eaf3b0768850f3ffb5d74f1534911fe3893",
    "public_key": "ecdsa-sha2-nistp256 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/xxxxxxxxxxxxxxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx= open-ssh-ca@cloudflareaccess.org"
  }
}
```