mcp-tenki

Instructions

Get forecast for a location in Japan

Args:
    prefecture: Name of the prefecture of Japan (in English alphabets, e.g.) "Hokkaido", "Tokyo", "Osaka", etc.)

Implementation Reference

• mcp_tenki/main.py:234-265 (handler)

  The get_forecast tool handler implementation which fetches weather data from the tsukumijima API.

  @mcp.tool()
  async def get_forecast(prefecture: str) -> str:
      """
      Get forecast for a location in Japan
  
      Args:
          prefecture: Name of the prefecture of Japan (in English alphabets, e.g.) "Hokkaido", "Tokyo", "Osaka", etc.)
      """
      location = convert_pref_to_id(prefecture=prefecture)
      if location is None:
          return "Unable to locate"
      url = f"https://weather.tsukumijima.net/api/forecast?city={location.id_}"
      res = await make_nws_request(url=url)
  
      if not res:
          return "Unable to fetch forecast data for this location."
      forecasts = [WeatherForecast(**f) for f in res["forecasts"]]
      return "\n------\n".join([f.format_forecast() for f in forecasts])
  
  
  def main():
      mcp.run(transport="stdio")
  
  
  if __name__ == "__main__":
      main()