Yahoo Finance MCP Server

Instructions

Implementation Reference

• server.py:1188-1208 (handler)

  Handler function implementing the get_crypto_price_eod tool logic, fetching historical EOD crypto prices from Financial Modeling Prep API in light or full mode.

  async def get_crypto_price_eod(symbol: str, mode: str = "light") -> str:
      """获取加密货币 EOD 数据"""
  
      api_key = os.environ.get("FMP_API_KEY")
      if not api_key:
          return "Error: FMP_API_KEY environment variable not set."
  
      base = "https://financialmodelingprep.com/stable/historical-price-eod"
      endpoint_map = {"light": "light", "full": "full"}
      endpoint = endpoint_map.get(mode.lower())
      if not endpoint:
          return "Error: invalid mode"
  
      url = f"{base}/{endpoint}"
      try:
          resp = requests.get(url, params={"symbol": symbol, "apikey": api_key}, timeout=10)
          resp.raise_for_status()
          data = resp.json()
      except Exception as e:
          return f"Error: getting {mode} crypto prices for {symbol}: {e}"
      return json.dumps(data)

• server.py:1184-1187 (registration)

  Registers the get_crypto_price_eod tool with the MCP server using the @tool decorator, including name and description.

  @fmp_server.tool(
      name="get_crypto_price_eod",
      description="""获取加密货币的历史收盘价，可选简略或完整模式。""",
  )