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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.

▶ Demo ansehen 📦 Installieren 💡 Anwendungsfälle

Warum nutzen

Hauptfunktionen

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

Live-Demo

In der Praxis

weather.replay ▶ bereit

0/0

Installieren

Wählen Sie Ihren Client

~/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
    }
  }
}

Öffne Claude Desktop → Settings → Developer → Edit Config. Nach dem Speichern neu starten.

~/.cursor/mcp.json · .cursor/mcp.json

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

Cursor nutzt das gleiche mcpServers-Schema wie Claude Desktop. Projektkonfiguration schlägt die globale.

VS Code → Cline → MCP Servers → Edit

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

Klicken Sie auf das MCP-Servers-Symbol in der Cline-Seitenleiste, dann "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

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

Gleiche Struktur wie Claude Desktop. Windsurf neu starten zum Übernehmen.

~/.continue/config.json

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

Continue nutzt ein Array von Serverobjekten statt einer Map.

~/.config/zed/settings.json

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

In context_servers hinzufügen. Zed lädt beim Speichern neu.

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

Einzeiler. Prüfen mit claude mcp list. Entfernen mit claude mcp remove.

Anwendungsfälle

Praxisnahe Nutzung: weather-mcp-server

Give your personal assistant weather awareness

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

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

Voraussetzungen

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

Ablauf

Set up and connect

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

→ current_weather tool visible
Ask naturally

What's the weather like in Tokyo right now? Should I bring a jacket for a walk?✓ Kopiert

→ Real-time conditions + actionable suggestion

Ergebnis: Instant weather checks without a separate app.

Fallstricke

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

Wann einsetzen: 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.

Ablauf

Call per city

Get current weather for New York, London, Tokyo, São Paulo. Summarize in one sentence each.✓ Kopiert

→ 4-city brief

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

Fallstricke

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

Kombinationen

Mit anderen MCPs für 10-fache Wirkung

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.✓ Kopiert

Werkzeuge

Was dieses MCP bereitstellt

Werkzeug	Eingaben	Wann aufrufen	Kosten
current_weather	city: str	Anything weather-related	1 WeatherAPI call (free up to 1M/mo)

Kosten & Limits

Was der Betrieb kostet

API-Kontingent: WeatherAPI free: 1M calls/month, 10/sec
Tokens pro Aufruf: ~200 tokens per response
Kosten in €: Free for personal use; paid plans start at $4/mo for higher tiers
Tipp: Cache results for 10-15 minutes — weather doesn't change faster than that.

Sicherheit

Rechte, Secrets, Reichweite

Credential-Speicherung: WEATHER_API_KEY env var

Datenabfluss: 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.

Fehlerbehebung

Häufige Fehler und Lösungen

401 from WeatherAPI

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

Prüfen: 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.

Alternativen

weather-mcp-server vs. andere

Alternative	Wann stattdessen	Kompromiss
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

Mehr

Ressourcen

📖 Offizielle README auf GitHub lesen

🐙 Offene Issues ansehen

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