> For the complete documentation index, see [llms.txt](https://api.pyblish.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://api.pyblish.com/environment-variables/pyblish_client_port.md).

# PYBLISH\_CLIENT\_PORT

This contains the currently used port number to communicate with [pyblish-qml](https://github.com/pyblish/pyblish-qml).

## Usage

You typically won't have to use this, but can be helpful during debugging sessions. It is written upon starting the server but never read, so changing it will not have any effect.

## Example

From [Communicating with the host](https://pyblish.gitbooks.io/developer-guide/content/communicating_with_the_host.html) in the Developer Guide.

```python
import os
import xmlrpclib
proxy = xmlrpclib.ServerProxy("http://127.0.0.1:9001/pyblish")
proxy.discover()
# {...}
```

{{ file.mtime }}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://api.pyblish.com/environment-variables/pyblish_client_port.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.