Two different products share the name. **ChatGPT desktop app** (the coding-agent
app) installs Search as a plugin; **chatgpt.com** in the browser adds it as a
Developer-mode app.

## ChatGPT desktop app

### 1 · Add the marketplace

Open **Settings** (`⌘,`) → **Integrations → Plugins**, click **Add ˅** and
choose **Add a marketplace**.

![Plugins page with the Add menu open on Add a marketplace](/assets/chatgpt-app-add.svg)

### 2 · Enter the source

Type the source, leave Git ref and Sparse paths as they are, and click
**Add marketplace**:

```
levirge/search
```

![Add plugin marketplace dialog with levirge/search as the source](/assets/chatgpt-app-marketplace.svg)

### 3 · Switch it on

**Levirge Search** appears in the Plugins list — make sure its switch is on.
The first time a chat uses it, sign in when the browser opens.

![Plugins list with Levirge Search switched on](/assets/chatgpt-app-enabled.svg)

## chatgpt.com in the browser

Needs a Plus, Pro, Business, Enterprise or Edu plan.

### 1 · Switch on Developer mode

Open **Settings → Security and login** and turn on **Developer mode**.

![ChatGPT Settings › Security and login with the Developer mode switch on](/assets/chatgpt-devmode.svg)

### 2 · Create the app

In the apps section of Settings click **+ Create**. Name it **Levirge Search**,
paste the server URL, choose **OAuth**, and click **Create**.

```
https://search.levirge.com/mcp
```

![Create app dialog with the name, MCP server URL and OAuth selected](/assets/chatgpt-create-app.svg)

### 3 · Connect and use it

Click **Connect** and sign in when the browser opens. In a chat, open the **+**
menu, choose **Developer mode**, and tick **Levirge Search**.

Then ask it a research question, or verify with a read-only call —
`stealth_list` returns the stealth-domain registry.