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weather-mcp-server

por ezh0v · ezh0v/weather-mcp-server

A tiny Go MCP that answers 'what's the weather in X?' using WeatherAPI — one tool, one env var, zero ceremony.

weather-mcp-server is a minimal Go server exposing a single current_weather tool that calls WeatherAPI.com. Useful as a 'hello world' MCP, a building block for location-aware agents, or a quick way to add weather awareness without pulling in a heavier maps MCP.

▶ Ver demo 📦 Instalar 💡 Casos de uso

Por qué usarlo

Características clave

Demo en vivo

Cómo se ve en la práctica

weather.replay ▶ listo
0/0

Instalar

Elige tu cliente

~/Library/Application Support/Claude/claude_desktop_config.json  · Windows: %APPDATA%\Claude\claude_desktop_config.json
{
  "mcpServers": {
    "weather": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/ezh0v/weather-mcp-server"
      ],
      "_inferred": true
    }
  }
}

Abre Claude Desktop → Settings → Developer → Edit Config. Reinicia después de guardar.

~/.cursor/mcp.json · .cursor/mcp.json
{
  "mcpServers": {
    "weather": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/ezh0v/weather-mcp-server"
      ],
      "_inferred": true
    }
  }
}

Cursor usa el mismo esquema mcpServers que Claude Desktop. La configuración del proyecto prevalece sobre la global.

VS Code → Cline → MCP Servers → Edit
{
  "mcpServers": {
    "weather": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/ezh0v/weather-mcp-server"
      ],
      "_inferred": true
    }
  }
}

Haz clic en el icono MCP Servers de la barra lateral de Cline y luego en "Edit Configuration".

~/.codeium/windsurf/mcp_config.json
{
  "mcpServers": {
    "weather": {
      "command": "TODO",
      "args": [
        "See README: https://github.com/ezh0v/weather-mcp-server"
      ],
      "_inferred": true
    }
  }
}

Mismo formato que Claude Desktop. Reinicia Windsurf para aplicar.

~/.continue/config.json
{
  "mcpServers": [
    {
      "name": "weather",
      "command": "TODO",
      "args": [
        "See README: https://github.com/ezh0v/weather-mcp-server"
      ]
    }
  ]
}

Continue usa un array de objetos de servidor en lugar de un mapa.

~/.config/zed/settings.json
{
  "context_servers": {
    "weather": {
      "command": {
        "path": "TODO",
        "args": [
          "See README: https://github.com/ezh0v/weather-mcp-server"
        ]
      }
    }
  }
}

Añádelo a context_servers. Zed recarga en caliente al guardar.

claude mcp add weather -- TODO 'See README: https://github.com/ezh0v/weather-mcp-server'

Un solo comando. Verifica con claude mcp list. Quita con claude mcp remove.

Casos de uso

Usos del mundo real: weather-mcp-server

Give your personal assistant weather awareness

👤 Anyone using Claude as a daily assistant ⏱ ~10 min beginner

Cuándo usarlo: You ask Claude for weather and it keeps saying 'I don't have real-time data'. Fix that in 5 minutes.

Requisitos previos
  • WeatherAPI.com free API key — weatherapi.com/signup — 1M calls/month free
Flujo
  1. Set up and connect
    Install weather-mcp-server via Docker with WEATHER_API_KEY=... and connect from Claude Desktop.✓ Copiado
    → current_weather tool visible
  2. Ask naturally
    What's the weather like in Tokyo right now? Should I bring a jacket for a walk?✓ Copiado
    → Real-time conditions + actionable suggestion

Resultado: Instant weather checks without a separate app.

Errores comunes
  • Free tier limits + no forecast endpoint here — This tool is current-conditions only; use weatherapi's REST API directly for 7-day forecast or swap to a more feature-rich weather MCP

Generate a morning travel briefing for multiple cities

👤 Frequent travelers, remote teams ⏱ ~5 min beginner

Cuándo usarlo: You coordinate with colleagues in 4 time zones and want to know if the New York team is in a blizzard before your 9 AM call.

Flujo
  1. Call per city
    Get current weather for New York, London, Tokyo, São Paulo. Summarize in one sentence each.✓ Copiado
    → 4-city brief

Resultado: 30-second daily ops awareness across your distributed team.

Errores comunes
  • API rate limit if called every minute across many cities — Cache for 15 minutes; weather doesn't change that fast

Combinaciones

Combínalo con otros MCPs para multiplicar por 10

weather + google-map

Plan an outdoor trip weighing both route and weather

Plan a route for 3 outdoor stops in LA. For each, also check current weather; warn if precipitation.✓ Copiado

Herramientas

Lo que expone este MCP

HerramientaEntradasCuándo llamarCoste
current_weather city: str Anything weather-related 1 WeatherAPI call (free up to 1M/mo)

Coste y límites

Lo que cuesta ejecutarlo

Cuota de API
WeatherAPI free: 1M calls/month, 10/sec
Tokens por llamada
~200 tokens per response
Monetario
Free for personal use; paid plans start at $4/mo for higher tiers
Consejo
Cache results for 10-15 minutes — weather doesn't change faster than that.

Seguridad

Permisos, secretos, alcance

Almacenamiento de credenciales: WEATHER_API_KEY env var
Salida de datos: Outbound to api.weatherapi.com only

Resolución de problemas

Errores comunes y soluciones

401 from WeatherAPI

WEATHER_API_KEY not set or invalid. Get one at weatherapi.com/my/.

Verificar: curl 'http://api.weatherapi.com/v1/current.json?key=$KEY&q=London'
City not found

Use full name with country: 'Paris, France' not 'Paris'. Or use coordinates 'lat,lng'.

Build fails: go module errors

Requires Go 1.21+. go version to check. Or use the Docker image.

Alternativas

weather-mcp-server vs otros

AlternativaCuándo usarlaContrapartida
Open-Meteo MCPYou want no API key at allFree, no key, but requires lat/lng (no city name geocoding)
National Weather Service MCPUS-only and you want forecasts + alertsUS-only; richer data

Más

Recursos

📖 Lee el README oficial en GitHub

🐙 Ver issues abiertas

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