| `external_auth_client_key_pass` | string | no | Passphrase to use for the private key when authenticating with the external service this is encrypted when stored |
| `enforce_terms` | boolean | no | Enforce application ToS to all users |
| `terms` | text | yes (if `enforce_terms` is true) | Markdown content for the ToS |
| `instance_statistics_visibility_private` | boolean | no | When set to `true` Instance statistics will only be available to admins |
```bash
curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/application/settings?signup_enabled=false&default_project_visibility=internal