# Interactive Brokers MCP (MCP server)

> Interactive Brokers MCP is an MCP server that adds tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Interactive Brokers MCP Server. It has 219 GitHub stars, is released under the MIT license and runs locally with npx -y interactive-brokers-mcp.

DISCLAIMER: This is an unofficial, community-developed MCP server and is NOT affiliated with or endorsed by Interactive Brokers. This software is in Alpha state and may not work perfectly.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/code-rabi/interactive-brokers-mcp |
| GitHub stars | 219 |
| License | MIT |
| Language | JavaScript |
| Transport | stdio |
| Packages | npm: interactive-brokers-mcp |
| Remote URL | none |
| Needs API key | yes |
| Official | no |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Other |
| Latest release | v1.24.1 (Jul 4, 2026) |
| Last commit | Jul 21, 2026 |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "interactive-brokers-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "interactive-brokers-mcp"
      ],
      "env": {
        "IB_PASSWORD_AUTH": "your-value",
        "IB_FLEX_TOKEN": "your-value"
      }
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --env IB_PASSWORD_AUTH=your-value --env IB_FLEX_TOKEN=your-value --transport stdio interactive-brokers-mcp -- npx -y interactive-brokers-mcp
```

### Cursor (.cursor/mcp.json)

```json
{
  "mcpServers": {
    "interactive-brokers-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "interactive-brokers-mcp"
      ],
      "env": {
        "IB_PASSWORD_AUTH": "your-value",
        "IB_FLEX_TOKEN": "your-value"
      }
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

### VS Code (.vscode/mcp.json)

```json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "ib_password_auth",
      "description": "IB_PASSWORD_AUTH",
      "password": true
    },
    {
      "type": "promptString",
      "id": "ib_flex_token",
      "description": "IB_FLEX_TOKEN",
      "password": true
    }
  ],
  "servers": {
    "interactive-brokers-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "interactive-brokers-mcp"
      ],
      "env": {
        "IB_PASSWORD_AUTH": "${input:ib_password_auth}",
        "IB_FLEX_TOKEN": "${input:ib_flex_token}"
      }
    }
  }
}
```

Config formats checked against the official docs on 2026-10-07.

## Environment variables

- `IB_HEADLESS_MODE`: Shown in the README's example configuration.
- `IB_USERNAME`: Shown in the README's example configuration.
- `IB_PASSWORD_AUTH` (secret): Shown in the README's example configuration.
- `IB_PAPER_TRADING`: Shown in the README's example configuration.
- `IB_FLEX_TOKEN` (secret): Shown in the README's example configuration.

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