> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pangolin.net/llms.txt
> Use this file to discover all available pages before exploring further.

# Open WebUI

> Connect Open WebUI to a Pangolin AI Gateway resource

Open WebUI is a self-hosted chat interface. It talks the OpenAI API, so point it at an AI Gateway resource that has an OpenAI-compatible provider attached (OpenAI, OpenRouter, Vercel AI Gateway, Microsoft Foundry, or custom). See [AI Gateway Overview](/manage/ai/overview) if you haven't set that up yet.

You'll need the resource's URL (its `<endpoint>`) and its API key (`<key>`). Both are on the resource's Keys page.

<Note>
  **Public vs. private resources**

  Wherever these instructions show `<key>`, what you put there depends on the resource type:

  * **Public resource** - reachable from anywhere, so the gateway checks a [virtual API key](/manage/ai/virtual-api-keys). Copy it from the resource URL after login, the Resource Launcher more-info panel, or `https://app.pangolin.net/<org-id>/keys` (use your self-hosted dashboard URL in place of `app.pangolin.net` if you self-host).
  * **Private resource** - only reachable from devices connected to your Pangolin network, so no key is checked. You must have the [Pangolin client](/manage/clients/install-client) installed and connected. Use the literal string `none` as the key.

  Don't delete the key field for private resources. Most clients refuse to start without *some* key set, so they need an inert placeholder rather than a missing one.
</Note>

## If you're running Open WebUI for the first time

```bash theme={"theme":"gruvbox-light-hard"}
docker run -d -p 3000:8080 \
  -e OPENAI_API_BASE_URL=<endpoint>/v1 \
  -e OPENAI_API_KEY=<key> \
  -v open-webui:/app/backend/data \
  --name open-webui \
  --restart always \
  ghcr.io/open-webui/open-webui:main
```

Open `http://localhost:3000`, finish the first-run account setup, and your Pangolin gateway is already the active connection.

## If Open WebUI is already running

Go to **Settings → Connections** and add a connection:

* **URL:** `<endpoint>/v1`
* **Key:** `<key>`

Save, then open a new chat - the models exposed by your resource's attached provider(s) show up in the model picker.

For a private resource, set the key to `none` rather than leaving it blank. Open WebUI treats a blank key as "no connection configured" and won't list the models.

Note that Open WebUI runs as a server, not on your laptop - so it's the Open WebUI host that needs the Pangolin client installed and connected to reach a private resource, not the browser you're viewing it from.