US Stock Data MCP Server

A Model Context Protocol (MCP) server designed for accessing and updating US stock historical price data.

Features

• Local Data Storage: Store stock data in CSV format locally for quick access
• Automatic Updates: Support for automatic stock data updates from Yahoo Finance
• Safe Data Writing: Use temporary files to ensure atomic and secure data writing
• Flexible Time Range: Customizable start date for data updates

Installation

1. Ensure Python 3.x is installed
2. Clone this repository
3. Install dependencies:

pip install -r requirements.txt

Usage

1. Start the Server

python server.py

The default data storage path after server startup is: ~/Library/Application Support/us-market-data/data

You can customize the data storage path using the US_STOCK_DATA_DIR environment variable.

2. Available Features

MCP Tools

1. get_local_stock_data

   • Function: Retrieve local stock historical data
   • Parameters:
     • symbol: Stock symbol, e.g., 'AAPL', 'MSFT'

2. update_stock_data

   • Function: Update stock data
   • Parameters:
     • symbol: Stock symbol, e.g., 'AAPL', 'MSFT'
     • start_date: Start date in YYYY-MM-DD format, defaults to 2015-01-01

MCP Resources

• Resource URI: usstock://{symbol}/historical
  • Function: Provide local US stock historical price data
  • Parameters:
    • symbol: Stock symbol

Data Format

The stored stock data includes the following fields:

• Date: Trading date
• Open: Opening price
• High: Highest price
• Low: Lowest price
• Close: Closing price
• Volume: Trading volume

Dependencies

• mcp: MCP protocol implementation
• pandas: Data processing and analysis
• yfinance: Yahoo Finance data retrieval
• pydantic: Data validation and settings management

Notes

1. Duplicate data is automatically handled during updates, keeping the latest records
2. A 5-second delay is implemented between update operations to avoid frequent API requests
3. All data operations include error handling to ensure service stability