内容
# IBKR MCP Server
A read-only [Model Context Protocol](https://modelcontextprotocol.io) (MCP) server that exposes Interactive Brokers account and market data to AI agents and other MCP clients.
The server connects to a locally running **IB Gateway** or **TWS** instance and provides structured access to account information, positions, market data, order status, historical bars, contract details, option chains, portfolio Greeks, and Flex queries.
> **Read-only by design.** This server cannot place, modify, or cancel orders. It is intended for portfolio monitoring, research, and analysis — not trade execution.
[](.github/workflows/ci.yml) [](https://www.python.org/) [](LICENSE)
---
## Table of Contents
1. [Highlights](#highlights)
2. [Quick start](#quick-start)
3. [Tools at a glance](#tools-at-a-glance)
4. [MCP client configuration](#mcp-client-configuration)
5. [Documentation map](#documentation-map)
6. [Project structure](#project-structure)
7. [Status & roadmap](#status--roadmap)
8. [License](#license)
---
## Highlights
- **11 core tools + 2 conditional Flex tools** covering server health, account summary, positions, market data (snapshots and historical bars), order status, contract details, option chains, portfolio Greeks, and Flex queries.
- **Two transports out of the box** — `stdio` (for clients that spawn the server as a subprocess) and `streamable-http` (for shared long-running deployments at `/mcp`).
- **Pure-Python Black-Scholes fallback** for portfolio Greeks when the gateway omits `modelGreeks`. No NumPy/SciPy dependency.
- **Resilient lifespan** — the server stays up even when IB Gateway is unreachable; tools surface a structured `IB_NOT_CONNECTED` error instead of crashing.
- **Strict typing & strong tests** — `mypy --strict`, `ruff`, and **216 unit tests** at **94% coverage**, with an in-memory `FakeIB` harness that needs no network access.
- **Apache-friendly licensing** — MIT, minimal dependency tree, no proprietary code.
---
## Quick start
### Prerequisites
- **Python 3.12+**
- **IB Gateway** or **TWS** running and logged in (paper or live)
- **Market-data subscriptions** for any instruments you'll query (or set `IB_MARKET_DATA_TYPE=DELAYED`)
- [`uv`](https://github.com/astral-sh/uv) (recommended) or `pip` for dependency management
### Install (from source)
```bash
git clone https://github.com/SignalSenseUK/ibkr-mcp.git
cd ibkr-mcp
uv sync # creates .venv and installs dependencies
cp .env.template .env # adjust values to taste
```
### Run
```bash
# Streamable HTTP at http://127.0.0.1:8400/mcp (default)
uv run ibkr-mcp
# Stdio (for Claude Desktop, Cursor, etc.)
uv run ibkr-mcp --transport stdio
# Or via the module
uv run python -m ibkr_mcp --transport stdio
```
You should see a banner on stderr similar to:
```
IBKR MCP Server v0.1.0
Connected to IB Gateway at 127.0.0.1:4002 (client_id=1)
Account: U1234567 | Paper: true
Transport: streamable-http (127.0.0.1:8400)
```
> The server **does not exit** when IB Gateway is down. Instead, every tool returns `{"code": "IB_NOT_CONNECTED", "error": "..."}` until the gateway is reachable.
### Smoke-test it
With the server running over Streamable HTTP, call `get_server_status` from any MCP client (or via `curl` with the proper MCP framing — most users will use a client). A connected, healthy server returns:
```json
{
"status": "connected",
"ibHost": "127.0.0.1",
"ibPort": 4002,
"accountId": "U1234567",
"paperTrading": true,
"transport": "streamable-http",
"uptimeSeconds": 12,
"marketDataType": "LIVE",
"registeredTools": 11,
"timestamp": "2026-04-29T15:30:00Z"
}
```
---
## Tools at a glance
| Tier | Tool | Purpose |
|------|------|---------|
| **P0** | `get_server_status` | Health check, uptime, transport, registered tool count |
| **P0** | `get_account_info` | Net liquidation, cash, P&L, margin requirements |
| **P0** | `get_positions` | Open positions with full option fields |
| **P0** | `get_market_data` | Real-time snapshot quote (any sec type, with Greeks for OPT) |
| **P0** | `get_historical_data` | OHLCV bars; accepts ISO 8601 or IB-native durations |
| **P0** | `get_order_status` | Status, fills, commission for a specific `orderId` |
| **P0** | `get_live_orders` | All open / pending orders |
| **P1** | `get_contract_details` | Resolve symbol → conId, trading hours, long name, etc. |
| **P2** | `get_option_chain` | Discovery (no expiry) or full chain with Greeks (with expiry) |
| **P2** | `get_portfolio_greeks` | Aggregated and per-position Greeks (BS fallback when gateway omits) |
| **P2** | `get_alerts` | Returns `NOT_IMPLEMENTED` placeholder (see [docs/usage.md §6.13](docs/usage.md#613-get_alerts-not-implemented)) |
| **Flex** | `list_flex_queries` | Lists configured Flex queries (registered iff `IB_FLEX_TOKEN` set) |
| **Flex** | `get_flex_query` | Executes a Flex query by id or name; returns parsed JSON or raw XML |
Full input/output schemas, examples, and error semantics for every tool: [**docs/usage.md**](docs/usage.md).
---
## MCP client configuration
### Claude Desktop / Cursor / Continue (stdio)
```json
{
"mcpServers": {
"ibkr": {
"command": "uv",
"args": ["--directory", "/path/to/ibkr-mcp", "run", "ibkr-mcp", "--transport", "stdio"],
"env": {
"IB_HOST": "127.0.0.1",
"IB_PORT": "4002",
"IB_PAPER_TRADING": "true",
"LOG_FORMAT": "console"
}
}
}
}
```
### MCP clients that connect to a running server (Streamable HTTP)
```json
{
"mcpServers": {
"ibkr": {
"url": "http://127.0.0.1:8400/mcp"
}
}
}
```
> **Localhost only.** The Streamable HTTP transport binds to `127.0.0.1` by default. Exposing it on other interfaces is **out of scope for v0.1** because no authentication layer is implemented. See [docs/deployment.md](docs/deployment.md#network-exposure) for safe ways to share the server across machines.
---
## Documentation map
| Document | What it covers |
|----------|----------------|
| [**docs/architecture.md**](docs/architecture.md) | Layered architecture, lifespan, concurrency model, Greeks priority, error mapping |
| [**docs/usage.md**](docs/usage.md) | Per-tool reference with input schema, output schema, examples, error codes |
| [**docs/configuration.md**](docs/configuration.md) | Full environment-variable reference and tuning advice |
| [**docs/deployment.md**](docs/deployment.md) | Stdio, Streamable HTTP, Docker, systemd, IBKR Gateway sidecar |
| [**docs/troubleshooting.md**](docs/troubleshooting.md) | IB Gateway pitfalls, daily restart, market-data permissions, common errors |
| [**docs/development.md**](docs/development.md) | Repo layout, FakeIB harness, CI gate, contribution workflow |
| [`specs/spec.md`](specs/spec.md) | Original full specification |
| [`specs/implementation_plan.md`](specs/implementation_plan.md) | Step-by-step implementation plan with cross-cutting conventions |
---
## Project structure
```
ibkr-mcp/
├── pyproject.toml
├── .env.template
├── README.md <- you are here
├── docs/ <- detailed documentation
│ ├── architecture.md
│ ├── usage.md
│ ├── configuration.md
│ ├── deployment.md
│ ├── troubleshooting.md
│ └── development.md
├── specs/
│ ├── spec.md <- canonical specification
│ └── implementation_plan.md
├── src/ibkr_mcp/
│ ├── __init__.py
│ ├── __main__.py <- CLI entry point
│ ├── server.py <- FastMCP app, lifespan, AppContext
│ ├── config.py <- Pydantic Settings + structlog setup
│ ├── connection.py <- ConnectionManager wrapping ib_async.IB
│ ├── errors.py <- ErrorCode enum, make_error, exception mapping
│ ├── logging_decorators.py <- @tool_error_handler, @tool_call_logger
│ ├── models/ <- Pydantic response schemas (camelCase)
│ ├── tools/ <- Tool implementations + per-module register()
│ └── utils/
│ ├── contracts.py <- build_contract for STK/OPT/FUT/CASH/BOND/IND
│ ├── durations.py <- ISO 8601 → IB-native translation
│ └── black_scholes.py <- pure-Python Greeks fallback
├── tests/
│ ├── fake_ib.py <- in-memory IB stand-in
│ ├── conftest.py <- shared fixtures
│ └── test_*.py <- 216 unit tests
└── .github/workflows/ci.yml <- ruff + mypy + pytest
```
---
## Status & roadmap
- **v0.1 (current):** All 11 core tools + 2 conditional Flex tools registered. `get_alerts` is intentionally a `NOT_IMPLEMENTED` placeholder (see [usage docs](docs/usage.md#613-get_alerts-not-implemented)).
- **Out of scope for v0.1** (tracked in [spec.md §14](specs/spec.md)):
- Authentication for the HTTP transport (must run localhost-only today)
- Streaming/push notifications
- Order placement (kept out of scope by the read-only design)
- Custom reconnection / health-check logic beyond `ib_async`'s built-in retry
- Caching layer for expensive operations (e.g. full option chains)
Contributions welcome — see [docs/development.md](docs/development.md).
---
## License
MIT — see [`LICENSE`](LICENSE).
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