From the README

# @rentalot/mcp-server

MCP server for the [Rentalot](https://rentalot.ai) API. Manage rental properties, contacts, showings, conversations, and more from any AI assistant.

## Setup

### Claude Code

```bash
claude mcp add rentalot -e RENTALOT_API_KEY=ra_your_key -- npx -y @rentalot/mcp-server
```

### Codex (OpenAI)

```bash
codex mcp add --env RENTALOT_API_KEY=ra_your_key -- npx -y @rentalot/mcp-server
```

### Gemini CLI

```bash
gemini mcp add --transport stdio rentalot -- npx -y @rentalot/mcp-server
```

Then add the env var to `~/.gemini/settings.json`:

```json
{
  "mcpServers": {
    "rentalot": {
      "command": "npx",
      "args": ["-y", "@rentalot/mcp-server"],
      "env": { "RENTALOT_API_KEY": "ra_your_key" }
    }
  }
}
```

### Claude Desktop / Cursor / Windsurf

All three use the same JSON format — just different file paths:

| Client | Config file |
|--------|-------------|
| Claude Desktop | `~/Library/Application Support/Claude/claude_desktop_config.json` (macOS)