17-tool weather/climate data hub via open-meteo-mcp-server — forecast, archive, air quality, marine, flood, elevation, 7 national models, ensemble, climate projections

{
  "server": "open-meteo-mcp-server",
  "version": "1.6.1",
  "transport": "stdio",
  "install": "npm install open-meteo-mcp-server",
  "entry": "dist/index.js",
  "tools_count": 17,
  "tools": ["geocoding", "weather_forecast", "weather_archive", "air_quality", "marine_weather", "elevation", "flood_forecast", "seasonal_forecast", "climate_projection", "ensemble_forecast", "dwd_icon_forecast", "gfs_forecast", "meteofrance_forecast", "ecmwf_forecast", "jma_forecast", "metno_forecast", "gem_forecast"],
  "calls": 19,
  "success_rate": "100% (after param fixes)",
  "p50_ms": 254,
  "max_ms": 942,
  "key_gotchas": ["models param is STRING for national model tools but ARRAY for climate_projection", "climate_projection requires daily (not monthly) plus models as array", "ensemble forecast returns 40 member columns — large response", "first geocoding call ~940ms HTTP cold start", "elevation uses DEM grid — Everest returns 8343m not 8849m", "seasonal_forecast may return sparse data"],
  "sample_calls": [
    {
      "tool": "geocoding",
      "args": {
        "name": "Istanbul"
      },
      "result_summary": "5 results, #1: Istanbul, Republic of Türkiye (41.01, 28.95) pop=15701602",
      "ms": 942
    },
    {
      "tool": "weather_forecast",
      "args": {
        "latitude": 41.01,
        "longitude": 28.98,
        "current": ["temperature_2m", "wind_speed_10m"],
        "daily": ["temperature_2m_max"],
        "forecast_days": 3
      },
      "result_summary": "72 hourly timestamps, max temps 27.7/28.6/28.6°C",
      "ms": 797
    },
    {
      "tool": "air_quality",
      "args": {
        "latitude": 41.01,
        "longitude": 28.98,
        "hourly": ["pm2_5", "european_aqi", "uv_index"],
        "forecast_days": 2
      },
      "result_summary": "48 hourly AQI/PM2.5/UV values",
      "ms": 643
    },
    {
      "tool": "elevation",
      "args": {
        "latitude": 27.99,
        "longitude": 86.93
      },
      "result_summary": "elevation: 8343m (Everest area)",
      "ms": 377
    },
    {
      "tool": "ensemble_forecast",
      "args": {
        "latitude": 48.86,
        "longitude": 2.35,
        "hourly": ["temperature_2m"],
        "models": "icon_seamless_eps",
        "forecast_days": 2
      },
      "result_summary": "40 member columns × 48 timestamps, mean temp 27.6°C",
      "ms": 366
    },
    {
      "tool": "climate_projection",
      "args": {
        "latitude": 41.01,
        "longitude": 28.98,
        "daily": ["temperature_2m_mean"],
        "models": ["EC_Earth3P_HR"],
        "start_date": "2030-01-01",
        "end_date": "2030-12-31"
      },
      "result_summary": "365 days projected temps, Jan 4.4°C",
      "ms": 879
    }
  ]
}