> For the complete documentation index, see [llms.txt](https://docs.plumvoice.com/dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.plumvoice.com/dev/voicexml/tags/vxml-tag.md).

# \<vxml>

## \<vxml> <a href="#vxml" id="vxml"></a>

The outermost tag within a VoiceXML document.

### Attributes

<table><thead><tr><th width="200">Name</th><th width="162.33333333333331">Data type<select><option value="c70f1aca9e804a258bdced76596f6592" label="String" color="blue"></option><option value="b9e423eb155846bb9c9845a8b3bc0f89" label="Integer" color="blue"></option><option value="4cdc3dc510784f4d8d5a44a93a8aea71" label="Boolean" color="blue"></option></select></th><th>Description</th></tr></thead><tbody><tr><td>application</td><td><span data-option="c70f1aca9e804a258bdced76596f6592">String</span></td><td>The URI of this document's application root document, if any.</td></tr><tr><td>xml:base</td><td><span data-option="c70f1aca9e804a258bdced76596f6592">String</span></td><td>The base URI for this document. As in HTML, a URI that all relative references within the document take as their base.</td></tr><tr><td>xml:lang</td><td><span data-option="c70f1aca9e804a258bdced76596f6592">String</span></td><td>(defaults to “en_us”) The language identifier for this document.</td></tr><tr><td>xmlns</td><td><span data-option="c70f1aca9e804a258bdced76596f6592">String</span></td><td>(defaults to “<a href="http://www.w3.org/2001/vxml">http://www.w3.org/2001/vxml</a>”) The designated namespace for VoiceXML. This attribute is disregarded by the platform.</td></tr><tr><td>version</td><td><span data-option="c70f1aca9e804a258bdced76596f6592">String</span></td><td>The version of VoiceXML of this document (required). Only “2.0” is supported, though certain “1.0” tags are still processed.</td></tr></tbody></table>

### Notes

None

### Example

```markup
<?xml version="1.0"?>
<vxml version="2.0">
  <form>
    <block>
      <prompt>
        This is a basic script.
      </prompt>
    </block>
  </form>
</vxml>
```

The output of the above script would be:

> Computer: This is a basic script.

### Child Tags

[\<catch>](/dev/voicexml/tags/catch-tag.md), [\<data>](/dev/voicexml/tags/data-tag.md), [\<help>](/dev/voicexml/tags/help-tag.md), [\<noinput>](/dev/voicexml/tags/noinput-tag.md), [\<nomatch>](/dev/voicexml/tags/nomatch-tag.md), [\<error>](/dev/voicexml/tags/error-tag.md), [\<form>](/dev/voicexml/tags/form-tag.md), [\<link>](/dev/voicexml/tags/link-tag.md), [\<menu>](/dev/voicexml/tags/menu-tag.md), [\<metadata>](/dev/voicexml/tags/metadata-tag.md), [\<property>](/dev/voicexml/tags/property-tag.md), [\<script>](/dev/voicexml/tags/script-tag.md), [\<var>](/dev/voicexml/tags/var-tag.md)

### Parent Tags

None