yfinance-mcp-server

日本語版

Important Note: This is an unofficial MCP server.

A Model Context Protocol (MCP) server for accessing Yahoo Finance data with comprehensive technical analysis features. This server provides AI-friendly structured stock analysis through Yahoo Finance API.

This project is based on onori/yfinance-mcp-server and has been enhanced with comprehensive technical analysis features.

Features

• Comprehensive Stock Analysis: Get detailed financial metrics, technical indicators, and AI-friendly Japanese reports
• Technical Indicators: RSI, MACD, Bollinger Bands, Stochastic, Moving Averages, VWAP, Volume Analysis
• Financial Metrics: Market cap, P/E ratio, P/B ratio, ROE, EPS growth, dividend yield
• Multi-Market Support: US stocks (AAPL), Japanese stocks (7203.T), crypto (BTC-USD), forex (EURUSD=X)
• AI-Optimized Output: Structured Japanese reports with emojis for better AI understanding
• Performance Optimized: Maximum 2 API calls with comprehensive local calculations

Installation

Claude Code MCP Configuration

Use the Claude Code CLI to add the MCP server:

claude mcp add yfinance npx @mokemokechicken/yfinance-mcp-server

Or manually add to your Claude Code MCP settings:

{
  "mcpServers": {
    "yfinance": {
      "command": "npx",
      "args": ["@mokemokechicken/yfinance-mcp-server"]
    }
  }
}

Other MCP Clients (Cursor, etc.)

{
  "mcpServers": {
    "yfinance": {
      "command": "npx",
      "args": ["@mokemokechicken/yfinance-mcp-server"]
    }
  }
}

Local CLI

MCP を介さずにローカルで分析する場合は CLI を使えます。

npm run cli -- AAPL
npm run cli -- 6301.T --days 5
npm run cli -- AAPL --technical-params '{"rsi":{"overbought":80}}'
npm run cli -- AAPL --json

ビルド後は yfinance-analyze コマンドとしても使えます。

Available Tool

getStockAnalysis

Performs comprehensive stock analysis with technical indicators and financial metrics.

Parameters:

• symbol (required): Stock symbol
  • US stocks: AAPL, GOOGL, MSFT
  • Japanese stocks: 7203.T, 6301.T, 9984.T
  • Crypto: BTC-USD, ETH-USD
  • Forex: EURUSD=X, USDJPY=X
• days (optional): Number of days for recent price data display (default: 7, range: 1-365)

Example Usage:

> Please analyze Apple stock (AAPL) for the last 5 days

> Analyze Toyota Motors (7203.T) with default 7-day period

Response includes:

• 📊 Recent stock price data
• 💰 Financial metrics (market cap, P/E, ROE, etc.)
• 📈 Technical indicators (RSI, MACD, Bollinger Bands, etc.)
• 🎯 Trading signals and trend analysis
• 📋 AI-friendly structured Japanese report

Development

To set up the development environment:

1. Clone the repository
2. Install dependencies:

npm install

3. Start the development server:

npm run dev

License

ISC License (ISC)