webull-openapi-mcp 0.1.1

MCP Server for Webull OpenAPI - enables AI assistants to securely access Webull trading and market data

Webull OpenAPI MCP Server

MCP Server for Webull OpenAPI — enables AI assistants (Cursor, Claude Desktop, Kiro, etc.) to securely access Webull trading and market data.

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⚠️ Disclaimer

The information provided by this tool is for reference only and does not constitute investment advice. Trading involves risk; please make decisions carefully.

See DISCLAIMER.md for the full disclaimer.

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Features

• Multi-Region Support — US and HK regions with region-specific order types, trading sessions, and validation
• Market Data — Real-time snapshots, tick data, quotes (depth), footprint, and OHLCV bars for stocks, futures, crypto, and event contracts
• Trading — Place, modify, cancel orders for stocks, options, futures, crypto, and event contracts
• Combo Orders — OTO, OCO, OTOCO combo orders (US only)
• Option Strategies — Multi-leg option strategies: vertical, straddle, strangle, butterfly, condor, etc. (US only)
• Algo Orders — TWAP, VWAP, POV algorithmic orders (US only)
• Risk Controls — Market-specific notional limits (USD/HKD/CNH), quantity limits, symbol whitelist
• Auto Account Resolution — Automatically selects the correct account based on asset type (stock, futures, crypto, event)
• Audit Logging — All order operations are logged for compliance
• 2FA Support — Interactive authentication flow for accounts with Two-Factor Authentication

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Example Prompts

Here are some prompts you can use with your AI assistant:

Market Data

• Show me AAPL's daily bars for the last 5 days
• Get a real-time snapshot for AAPL, MSFT, and GOOGL
• What's the current bid/ask for TSLA?
• Show me 1-minute tick data for NVDA

Account & Portfolio

• What's my account balance and buying power?
• Show me all my current positions
• List all my linked accounts

Stock Trading

• Place a limit order to buy 100 shares of AAPL at $250
• Place a market order to sell 50 shares of TSLA
• Preview a limit buy order for 200 shares of MSFT at $450 before placing it

Options Trading

• Buy 1 AAPL call option, strike $250, expiring 2026-04-17, limit price $5.00
• Buy 1 TSLA put option, strike $200, expiring 2026-05-15

Order Management

• Show me my order history for the last 7 days
• What are my current open orders?
• Cancel order with ID abc123

HK Market

• Place an enhanced limit order to buy 100 shares of Tencent (00700) at HKD 500
• Place an at-auction limit order for 200 shares of 00700 at HKD 510

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Prerequisites

1. Webull Developer Account — Register at:
   • US: developer.webull.com
   • HK: developer.webull.hk
2. API Credentials — Obtain your App Key and App Secret
3. Market Data Subscription — Subscribe to quotes for market data access:
   • US: webullapp.com/quote | Guide
   • HK: webullapp.hk/quote | Guide
4. Python 3.10+
5. uv (recommended) — Install guide

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Installation

Option 1: uvx (Recommended)

uvx webull-openapi-mcp serve

Option 2: pip

pip install webull-openapi-mcp
webull-openapi-mcp serve

Option 3: Local Development

git clone https://github.com/webull-inc/webull-mcp-server.git
cd webull-mcp-server
uv sync
uv run python -m webull_openapi_mcp serve

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Quick Start

1. Initialize Configuration

webull-openapi-mcp init

Creates a .env file. Fill in your WEBULL_APP_KEY and WEBULL_APP_SECRET.

2. Authenticate

webull-openapi-mcp auth

For 2FA accounts: approve the request in your Webull mobile app. Token is valid for 15 days and auto-refreshes.

3. Start the Server

webull-openapi-mcp serve

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Client Configuration

Kiro / Cursor / Claude Desktop

Add to your MCP configuration:

Using environment variables:

{
  "mcpServers": {
    "webull": {
      "command": "uvx",
      "args": ["webull-openapi-mcp", "serve"],
      "env": {
        "WEBULL_APP_KEY": "your_app_key",
        "WEBULL_APP_SECRET": "your_app_secret",
        "WEBULL_REGION_ID": "us",
        "WEBULL_ENVIRONMENT": "prod"
      }
    }
  }
}

Using .env file (local development):

{
  "mcpServers": {
    "webull": {
      "command": "uv",
      "args": [
        "run", "--directory", "/path/to/webull-mcp-server",
        "python", "-m", "webull_openapi_mcp", "serve",
        "--env-file", "/path/to/.env"
      ]
    }
  }
}

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Configuration

Variable	Description	Default
WEBULL_APP_KEY	App Key (required)	—
WEBULL_APP_SECRET	App Secret (required)	—
WEBULL_ENVIRONMENT	uat (sandbox) or prod	uat
WEBULL_REGION_ID	us or hk	us
WEBULL_TOOLSETS	Enabled tool categories (comma-separated)	(all enabled)
WEBULL_MAX_ORDER_NOTIONAL_USD	Max order value for US market (USD)	10000
WEBULL_MAX_ORDER_NOTIONAL_HKD	Max order value for HK market (HKD)	80000
WEBULL_MAX_ORDER_NOTIONAL_CNH	Max order value for CN market (CNH)	70000
WEBULL_MAX_ORDER_QUANTITY	Max order quantity	1000
WEBULL_SYMBOL_WHITELIST	Allowed symbols (comma-separated)	(no restriction)
WEBULL_TOKEN_DIR	Token storage directory	./conf/
WEBULL_AUDIT_LOG_FILE	Audit log file path	stderr only
WEBULL_LOG_LEVEL	SDK log level	WARNING

Note: WEBULL_REGION_ID=us represents Webull US (developer.webull.com), and WEBULL_REGION_ID=hk represents Webull Hong Kong (developer.webull.hk).

See .env.example for full configuration template.

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Available Tools

Market Data

Category	Tools	Region
Stock	get_stock_tick, get_stock_snapshot, get_stock_quotes, get_stock_footprint, get_stock_bars, get_stock_bars_single	US, HK
Futures	get_futures_tick, get_futures_snapshot, get_futures_depth, get_futures_bars, get_futures_footprint	US
Crypto	get_crypto_snapshot, get_crypto_bars	US
Event	get_event_tick, get_event_snapshot, get_event_depth, get_event_bars	US

Trading

Category	Tools	Region
Account	get_account_list	US, HK
Assets	get_account_balance, get_account_positions	US, HK
Instrument	get_instruments, get_futures_instruments, get_futures_products, get_crypto_instruments, get_event_series, get_event_instruments, get_event_categories, get_event_events	varies
Stock Order	place_stock_order, preview_stock_order, replace_stock_order	US, HK
Combo Order	place_stock_combo_order (OTO/OCO/OTOCO)	US
Option Order	place_option_single_order, preview_option_order, replace_option_order	US, HK
Option Strategy	place_option_strategy_order	US
Algo Order	place_algo_order (TWAP/VWAP/POV)	US
Futures Order	place_futures_order, replace_futures_order	US
Crypto Order	place_crypto_order	US
Event Order	place_event_order, replace_event_order	US
Order	cancel_order, get_order_history, get_open_orders, get_order_detail	US, HK

Region Differences

Feature	US	HK
Stock/Option Trading	✅	✅
Futures Trading	✅	❌
Crypto Trading	✅	❌
Event Contracts	✅	❌
Combo Orders	✅	❌
Option Strategies	✅	❌
Algo Orders	✅	❌
Markets	US	US, HK, CN
Order Types	LIMIT, MARKET, STOP_LOSS, STOP_LOSS_LIMIT, TRAILING_STOP_LOSS, etc.	LIMIT, MARKET, ENHANCED_LIMIT, AT_AUCTION, AT_AUCTION_LIMIT, etc.

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CLI Commands

webull-openapi-mcp --version    # Show version
webull-openapi-mcp init         # Initialize .env configuration
webull-openapi-mcp auth         # Authenticate (2FA accounts)
webull-openapi-mcp serve        # Start MCP server
webull-openapi-mcp status       # Show configuration status
webull-openapi-mcp tools        # List available tools

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Security

• Never share your AK/SK with AI models — Do not paste your App Key or App Secret into chat prompts, AI assistants, or any LLM conversation. These credentials should only be configured via environment variables or .env files, never exposed in plain text to the model.
• Prefer env over .env files — Pass credentials via the MCP client's env field (in mcp.json) rather than a .env file in your workspace. The env field injects credentials as process environment variables, which the AI model cannot access. A .env file in your workspace could be read by the AI assistant through IDE file access.
• Credential isolation — AK/SK are used only inside the MCP server process for SDK initialization and request signing. They never appear in tool outputs, logs, or error messages.
• Review before trading — Always review order details proposed by the AI before confirming. Use preview_stock_order / preview_option_order before placing orders.
• Use toolset filtering — Set WEBULL_TOOLSETS=account,market-data to disable trading tools entirely if you only need read-only access.
• Default sandbox — The server defaults to UAT (sandbox) environment. You must explicitly set WEBULL_ENVIRONMENT=prod for live trading.
• Dependency security — fastmcp is pinned to version 2.0.0. Users are responsible for monitoring and updating third-party dependencies for security patches. Review release notes before upgrading.

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Troubleshooting

2FA Authentication Required

webull-openapi-mcp auth    # Approve in Webull app
webull-openapi-mcp serve   # Then start server

Device Not Registered

1. Open Webull mobile app → log in with your API account → complete device registration
2. Run webull-openapi-mcp auth

Market Data 401/403

Subscribe to quotes:

• HK: webullapp.hk/quote | Guide
• US: webullapp.com/quote | Guide

Token Expired

rm -rf ./conf/token.txt
webull-openapi-mcp auth

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Project Structure

webull-mcp-server/
├── webull_openapi_mcp/
│   ├── cli.py              # CLI commands
│   ├── server.py           # MCP server
│   ├── sdk_client.py       # Webull SDK adapter
│   ├── config.py           # Configuration management
│   ├── region_config.py    # Region-specific settings
│   ├── guards.py           # Order validation
│   ├── audit.py            # Audit logging
│   ├── errors.py           # Error handling
│   ├── formatters.py       # Response formatting
│   ├── constants.py        # Enum constants
│   └── tools/
│       ├── market_data/    # Stock, futures, crypto, event market data
│       └── trading/        # Account, order, instrument tools
├── tests/                  # Unit & property-based tests
├── conf/                   # Token storage
├── .env.example            # Configuration template
├── DISCLAIMER.md           # Full disclaimer
└── pyproject.toml          # Package configuration

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License

Apache License 2.0 — see LICENSE for details.