Weather MCP Server

from typing import Any import httpx import json from mcp.server.fastmcp import FastMCP mcp = FastMCP('weather') # Constants OPENMETEO_API_BASE = "https://api.open-meteo.com/v1" USER_AGENT = "weather-app/1.0" # Helper function to make a request to the Open-Meteo API async def make_openmeteo_request(url: str) -> dict[str, Any] | None: """Make a request to the Open-Meteo API with proper error handling.""" headers = { "User-Agent": USER_AGENT, "Accept": "application/json" } async with httpx.AsyncClient() as client: try: response = await client.get(url, headers=headers, timeout=30.0) response.raise_for_status() return response.json() except Exception: return None @mcp.tool() async def get_current_weather(latitude: float, longitude: float) -> str: """Get current weather for a location. Args: latitude: Latitude of the location longitude: Longitude of the location """ url = f"{OPENMETEO_API_BASE}/forecast?latitude={latitude}&longitude={longitude}&current=temperature_2m,is_day,showers,cloud_cover,wind_speed_10m,wind_direction_10m,pressure_msl,snowfall,precipitation,relative_humidity_2m,apparent_temperature,rain,weather_code,surface_pressure,wind_gusts_10m" data = await make_openmeteo_request(url) if not data: return "Unable to fetch current weather data for this location." return json.dumps(data) def main(): print("Hello from mcp-server-weather!") if __name__ == "__main__": main() mcp.run(transport='stdio')