freemcplab / 디렉터리 / 플레이그라운드 / 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.

▶ 데모 보기 📦 설치 💡 사용 사례

왜 쓰나요

핵심 기능

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

라이브 데모

실제 사용 모습

weather.replay ▶ 준비됨

0/0

설치

클라이언트 선택

~/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
    }
  }
}

Claude Desktop → Settings → Developer → Edit Config 열기. 저장 후 앱 재시작.

~/.cursor/mcp.json · .cursor/mcp.json

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

Cursor는 Claude Desktop과 동일한 mcpServers 스키마 사용. 프로젝트 설정이 전역보다 우선.

VS Code → Cline → MCP Servers → Edit

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

Cline 사이드바의 MCP Servers 아이콘 클릭 후 "Edit Configuration" 선택.

~/.codeium/windsurf/mcp_config.json

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

Claude Desktop과 같은 형식. Windsurf 재시작 후 적용.

~/.continue/config.json

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

Continue는 맵이 아닌 서버 오브젝트 배열 사용.

~/.config/zed/settings.json

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

context_servers에 추가. 저장 시 Zed가 핫 리로드.

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

한 줄 명령. claude mcp list로 확인, claude mcp remove로 제거.

사용 사례

실전 활용법: weather-mcp-server

Give your personal assistant weather awareness

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

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

사전 조건

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

흐름

Set up and connect

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

→ current_weather tool visible
Ask naturally

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

→ Real-time conditions + actionable suggestion

결과: Instant weather checks without a separate app.

함정

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

언제 쓸까: 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.

흐름

Call per city

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

→ 4-city brief

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

함정

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

조합

다른 MCP와 조합해 10배 효율

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.✓ 복사됨

도구

이 MCP가 노출하는 것

도구	입력	언제 호출	비용
current_weather	city: str	Anything weather-related	1 WeatherAPI call (free up to 1M/mo)

비용 및 제한

운영 비용

API 쿼터: WeatherAPI free: 1M calls/month, 10/sec
호출당 토큰: ~200 tokens per response
금액: Free for personal use; paid plans start at $4/mo for higher tiers
팁: Cache results for 10-15 minutes — weather doesn't change faster than that.

보안

권한, 시크릿, 파급범위

자격 증명 저장: WEATHER_API_KEY env var

데이터 외부 송신: 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.

문제 해결

자주 발생하는 오류와 해결

401 from WeatherAPI

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

확인: 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.

대안