Yahoo Finance MCP Server

import { Tool } from '@modelcontextprotocol/sdk/types.js'; import { YahooFinanceService } from '../yahoo-finance-service.js'; export class YahooFinanceTools { private yahooFinanceService: YahooFinanceService; constructor() { this.yahooFinanceService = new YahooFinanceService(); } getTools(): Tool[] { return [ { name: 'get_quote', description: 'Get current stock price and market data for a ticker symbol', inputSchema: { type: 'object', properties: { ticker: { type: 'string', description: 'Stock ticker symbol (e.g., AAPL, GOOGL, MSFT)', }, }, required: ['ticker'], }, }, { name: 'get_historical_data', description: 'Get historical OHLCV data for a stock over a specified time range', inputSchema: { type: 'object', properties: { ticker: { type: 'string', description: 'Stock ticker symbol', }, range: { type: 'string', description: 'Time range for historical data', enum: ['1d', '5d', '1mo', '3mo', '6mo', '1y', '2y', '5y', '10y', 'ytd', 'max'], default: '1mo', }, interval: { type: 'string', description: 'Data interval', enum: ['1m', '2m', '5m', '15m', '30m', '60m', '90m', '1h', '1d', '5d', '1wk', '1mo', '3mo'], default: '1d', }, }, required: ['ticker'], }, }, { name: 'get_news', description: 'Get latest news headlines for a stock ticker', inputSchema: { type: 'object', properties: { ticker: { type: 'string', description: 'Stock ticker symbol', }, limit: { type: 'number', description: 'Number of news articles to return (1-50)', minimum: 1, maximum: 50, default: 5, }, }, required: ['ticker'], }, }, { name: 'compare_stocks', description: 'Compare multiple stocks side by side with their current market data', inputSchema: { type: 'object', properties: { tickers: { type: 'array', items: { type: 'string', }, description: 'Array of stock ticker symbols to compare (2-10 tickers)', minItems: 2, maxItems: 10, }, }, required: ['tickers'], }, }, ]; } async executeTool(name: string, args: any) { switch (name) { case 'get_quote': { const { ticker } = args as { ticker: string }; const quote = await this.yahooFinanceService.getQuote(ticker); return { content: [ { type: 'text', text: JSON.stringify(quote, null, 2), }, ], }; } case 'get_historical_data': { const { ticker, range = '1mo', interval = '1d' } = args as { ticker: string; range?: string; interval?: string; }; const historicalData = await this.yahooFinanceService.getHistoricalData( ticker, range, interval ); return { content: [ { type: 'text', text: JSON.stringify(historicalData, null, 2), }, ], }; } case 'get_news': { const { ticker, limit = 5 } = args as { ticker: string; limit?: number; }; const news = await this.yahooFinanceService.getNews(ticker, limit); return { content: [ { type: 'text', text: JSON.stringify(news, null, 2), }, ], }; } case 'compare_stocks': { const { tickers } = args as { tickers: string[] }; const comparison = await this.yahooFinanceService.compareTickers(tickers); return { content: [ { type: 'text', text: JSON.stringify(comparison, null, 2), }, ], }; } default: throw new Error(`Unknown tool: ${name}`); } } }