Interactive Brokers MCP Server

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.

A Model Context Protocol (MCP) server that provides integration with Interactive Brokers' trading platform. This server allows AI assistants to interact with your IB account to retrieve market data, check positions, and place trades.

🔒 Security Notice

Features

• Interactive Brokers API Integration: Full trading capabilities including account management, position tracking, real-time market data, and order management (market, limit, and stop orders)
• Flex Query Support: Execute Flex Queries to retrieve account statements, trade confirmations, and historical data. Queries are automatically remembered for easy reuse
• Flexible Authentication: Choose between browser-based OAuth authentication or headless mode with credentials for automated environments, including fully automated TOTP 2FA override. See TOTP 2FA Strategy Document for detailed configuration and important risk warnings.
• Simple Setup: Run directly with npx - no Docker or additional installations required. Includes pre-configured IB Gateway and Java runtime for all platforms

Security Notice

IMPORTANT WARNINGS:

• Financial Risk: Trading involves substantial risk of loss. Always test with paper trading first.
• Security: This software handles sensitive financial data. Only run locally, never on public servers.
• No Warranty: This unofficial software comes with no warranties. Use at your own risk.
• Not Financial Advice: This tool is for automation only, not financial advice.

Prerequisites

No additional installations required for mainstream platforms. This package includes:

• Pre-configured IB Gateway for all platforms (Linux, macOS, Windows)
• Java Runtime Environment (JRE) for macOS, Windows, and standard Linux builds
• Automatic first-run musl JRE download for Alpine-based containers (e.g. node:lts-alpine, supergateway)
• All necessary dependencies

You only need:

• Interactive Brokers account (paper or live trading)
• Node.js 18+ (for running the MCP server)

Quick Start

Add this MCP server to your Cursor/Claude configuration:

{
  "mcpServers": {
    "interactive-brokers": {
      "command": "npx",
      "args": ["-y", "interactive-brokers-mcp"]
    }
  }
}

When you first use the server, a web browser window will automatically open for the Interactive Brokers OAuth authentication flow. Log in with your IB credentials to authorize the connection.

Headless Mode Configuration

For automated environments or when you prefer not to use a browser for authentication, you can enable headless mode by configuring it in your MCP server configuration:

{
  "mcpServers": {
    "interactive-brokers": {
      "command": "npx",
      "args": ["-y", "interactive-brokers-mcp"],
      "env": {
        "IB_HEADLESS_MODE": "true",
        "IB_USERNAME": "your_ib_username",
        "IB_PASSWORD_AUTH": "your_ib_password"
      }
    }
  }
}

In headless mode, the server will automatically authenticate using your credentials without opening a browser window. This is useful for:

• Automated trading systems
• Server environments without a display
• CI/CD pipelines
• Situations where browser interaction is not desired

Important: Even in headless mode, Interactive Brokers may still require two-factor authentication (2FA). When 2FA is triggered, the headless authentication will wait up to 60 seconds for you to complete the 2FA process through your configured method (mobile app, SMS, etc.) before returning an AUTHENTICATION_PENDING response. Wait for approval to complete, then check account info again.

To enable paper trading, add "IB_PAPER_TRADING": "true" to your environment variables:

{
  "mcpServers": {
    "interactive-brokers": {
      "command": "npx",
      "args": ["-y", "interactive-brokers-mcp"],
      "env": {
        "IB_HEADLESS_MODE": "true",
        "IB_USERNAME": "your_ib_username",
        "IB_PASSWORD_AUTH": "your_ib_password",
        "IB_PAPER_TRADING": "true"
      }
    }
  }
}

Security Note: Store credentials securely and never commit them to version control. Consider using environment variable files or secure credential management systems.

Flex Query Configuration (Optional)

To use Flex Queries for retrieving account statements and historical data, you need to configure your Flex Web Service Token:

{
  "mcpServers": {
    "interactive-brokers": {
      "command": "npx",
      "args": ["-y", "interactive-brokers-mcp"],
      "env": {
        "IB_FLEX_TOKEN": "your_flex_token_here"
      }
    }
  }
}

How to Get Your Flex Token:

1. Log in to Interactive Brokers Account Management
2. Go to Settings → Account Settings
3. Navigate to Reporting → Flex Web Service
4. Generate or retrieve your Flex Web Service Token

For detailed instructions on enabling Flex Web Service, see the IB Flex Web Service Guide.

Creating Flex Queries:

1. Go to Reports → Flex Queries in Account Management
2. Create or customize your query template
3. Click the info icon next to your query to find its Query ID

For a complete guide on creating and customizing Flex Queries, see the IB Flex Queries Guide.

Note: When you execute a Flex Query for the first time, the MCP server automatically saves it with its name from the API. Future executions can reference the query by either its ID or its saved name.

Flex Query Features:

• Automatic Memory: When you execute a Flex Query, it's automatically saved for future use
• Easy Reuse: Previously used queries are remembered - no need to copy query IDs repeatedly
• Friendly Names: Optionally provide a friendly name when first executing a query
• Forget Queries: Remove queries you no longer need with the forget_flex_query tool

Configuration Variables

See the TOTP 2FA Strategy Document for details on the 2FA and selector-override variables.

Gateway Lifecycle

On startup, the MCP first probes reachable local Gateway endpoints on the configured port and common Client Portal Gateway ports. If a healthy existing Gateway is found, the MCP attaches to it and does not start another bundled Gateway.

When no suitable existing Gateway is reachable, the MCP starts the bundled Java Gateway as a durable detached process. Runtime coordination files are stored under ib-gateway/.runtime/:

• gateway-session.json records the MCP-managed Gateway pid, port, version, and log paths.
• gateway-session.lock prevents two MCP processes from starting duplicate managed Gateways at the same time.
• gateway.stdout.log and gateway.stderr.log receive the Gateway process output.

Normal MCP shutdown detaches from the Gateway and leaves it running so later MCP runs can reuse it. If IB_FORCE_STANDALONE_GATEWAY=true is set, the MCP skips unrelated external Gateway discovery, but it still reuses or coordinates through the durable MCP-managed session metadata and lock files.

To reset the managed Gateway session, stop the Gateway process recorded in ib-gateway/.runtime/gateway-session.json, then remove ib-gateway/.runtime/gateway-session.json and any stale ib-gateway/.runtime/gateway-session.lock. The MCP automatically removes stale metadata when the recorded pid no longer exists.

Available MCP Tools

Trading & Account Management

Flex Queries (Requires IB_FLEX_TOKEN)

Troubleshooting

Authentication Problems:

• Use the web interface that opens automatically
• Complete any required two-factor authentication
• Try paper trading mode if live trading fails

Gateway Discovery Problems:

• If another IB Gateway is already listening on a local port but should not be reused, set IB_FORCE_STANDALONE_GATEWAY=true
• Existing gateways are only reused when the MCP process can reach them over HTTPS; otherwise the bundled standalone gateway is started on an available port
• For MCP-managed Gateway startup issues, inspect ib-gateway/.runtime/gateway.stdout.log, ib-gateway/.runtime/gateway.stderr.log, and ib-gateway/.runtime/gateway-session.json
• To clear a stale managed startup lock, confirm no MCP process is currently starting Gateway, then remove ib-gateway/.runtime/gateway-session.lock

Support

• This Server: Open an issue in this repository.

License

MIT License - see LICENSE file for details.

Thanks to our contributors

A big thank you to everyone who has contributed to making this project better.