freemcplab / Diretório / Playground / weather-mcp-server

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weather-mcp-server

Name: weather-mcp-server MCP Server
Author: ezh0v

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 que usar

Principais recursos

One tool: current_weather by city
Single-binary Go server — compile once, run anywhere
Dockerfile included
Data source: WeatherAPI.com (generous free tier)
No state, no persistence — fully stateless

Demo ao vivo

Como fica na prática

weather.replay ▶ pronto

0/0

Instalar

Escolha seu 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
    }
  }
}

Abra Claude Desktop → Settings → Developer → Edit Config. Reinicie após salvar.

~/.cursor/mcp.json · .cursor/mcp.json

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

Cursor usa o mesmo esquema mcpServers que o Claude Desktop. Config de projeto vence a global.

VS Code → Cline → MCP Servers → Edit

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

Clique no ícone MCP Servers na barra lateral do Cline, depois "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

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

Mesmo formato do Claude Desktop. Reinicie o Windsurf para aplicar.

~/.continue/config.json

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

O Continue usa um array de objetos de servidor em vez de um map.

~/.config/zed/settings.json

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

Adicione em context_servers. Zed recarrega automaticamente ao salvar.

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

Uma linha só. Verifique com claude mcp list. Remova com claude mcp remove.

Casos de uso

Usos do mundo real: weather-mcp-server

Give your personal assistant weather awareness

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

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

Pré-requisitos

WeatherAPI.com free API key — weatherapi.com/signup — 1M calls/month free

Fluxo

Set up and connect

Install weather-mcp-server via Docker with WEATHER_API_KEY=... and connect from Claude Desktop.✓ Copiado

→ current_weather tool visible
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.

Armadilhas

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

Quando usar: 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.

Fluxo

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.

Armadilhas

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

Combinações

Combine com outros MCPs para 10× de alavancagem

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

Ferramentas

O que este MCP expõe

Ferramenta	Entradas	Quando chamar	Custo
current_weather	city: str	Anything weather-related	1 WeatherAPI call (free up to 1M/mo)

Custo e limites

O que custa rodar

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

Segurança

Permissões, segredos, alcance

Armazenamento de credenciais: WEATHER_API_KEY env var

Saída de dados: Outbound to api.weatherapi.com only

Compiled from source or Docker — verify the build yourself for production use; small-audience Go repo.
No built-in forecast — single-endpoint tool by design.

Solução de problemas

Erros comuns e correções

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. outros

Alternativa	Quando usar	Troca
Open-Meteo MCP	You want no API key at all	Free, no key, but requires lat/lng (no city name geocoding)
National Weather Service MCP	US-only and you want forecasts + alerts	US-only; richer data

Mais

Recursos

📖 Leia o README oficial no GitHub

🐙 Ver issues abertas

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