yahoo_finance_search
Retrieve stock data and financial information from Yahoo Finance by entering a stock symbol and optional time period.
Instructions
Get stock information from Yahoo Finance.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| symbol | Yes | ||
| period | No | 1mo |
Implementation Reference
- server.py:129-182 (handler)The handler function for 'yahoo_finance_search' tool. It fetches stock data from Yahoo Finance API using the provided symbol and period, extracts key metrics like current price, open, high, low, close, volume, and formats them into a readable string response. The @mcp.tool() decorator registers it with the MCP server.
@mcp.tool() async def yahoo_finance_search(symbol: str, period: str = "1mo") -> str: """Get stock information from Yahoo Finance.""" try: valid_periods = ["1d", "5d", "1mo", "3mo", "6mo", "1y", "5y"] if period not in valid_periods: return f"Invalid period. Must be one of: {', '.join(valid_periods)}" params = { "symbol": symbol, "range": period, "interval": "1d", "includePrePost": "false" } data = await make_api_request(f"{YAHOO_FINANCE_BASE}{symbol}", params=params) if not data or "chart" not in data or not data["chart"]["result"]: return f"Could not retrieve data for symbol {symbol}" result = data["chart"]["result"][0] meta = result["meta"] indicators = result["indicators"]["quote"][0] timestamps = result["timestamp"] dates = [datetime.fromtimestamp(ts).strftime('%Y-%m-%d') for ts in timestamps] latest_idx = -1 latest_date = dates[latest_idx] latest_open = indicators["open"][latest_idx] latest_high = indicators["high"][latest_idx] latest_low = indicators["low"][latest_idx] latest_close = indicators["close"][latest_idx] latest_volume = indicators["volume"][latest_idx] response = [ f"Stock: {meta['symbol']} ({meta['exchangeName']})", f"Currency: {meta['currency']}", f"Current Price: {meta['regularMarketPrice']}", f"Previous Close: {meta['chartPreviousClose']}", "\nLatest Trading Day:", f"Date: {latest_date}", f"Open: {latest_open}", f"High: {latest_high}", f"Low: {latest_low}", f"Close: {latest_close}", f"Volume: {latest_volume}" ] return "\n".join(response) except Exception as e: logger.error(f"Error in yahoo_finance_search: {e}") return f"Failed to retrieve finance data for {symbol} due to an internal error." - server.py:129-129 (registration)The @mcp.tool() decorator registers the yahoo_finance_search function as an MCP tool.
@mcp.tool()