---
title: ".zuerich"
url: "https://help.internetx.com/en/api/epp-zuerich/"
lang: "en"
section: "API reference — EPP API"
breadcrumb: "API reference > EPP extensions > TLD extensions"
updated: "2023-12-29"
---

# .zuerich

## Contact extensions

| Keyword | Occurs | Type | Format | Description |
| --- | --- | --- | --- | --- |
| zuerich\_is\_authority | 0 - 1 | boolean |  | Indicates whether the registrant is a public corporation or not.<br>• 0 = not a public corporation<br>• 1 = public corporation<br>Default = 0 |
| zuerich\_enterprise\_id | 0 - 1 | string |  | The enterprise ID, in the specific context of .zuerich based on current rules, is the Swiss UID/IDE/IDI. |

## XML example

```
            <extension>
                <zuerich_enterprise_id>CHE-123.456.789</zuerich_enterprise_id>
                <zuerich_is_authority>1</zuerich_is_authority>
            </extension>
```