MCP 服务器

Weather MCP Server

Provides real-time weather data to Claude using the Open-Meteo API, with no API key required. Enables natural language queries like 'What's the weather in Tokyo?'.

README

☀️ Weather MCP Server

Real-time weather data for Claude — powered by Open-Meteo. No API key required.

🌍 Live UI →

What is this?

A Model Context Protocol (MCP) server that gives Claude the ability to fetch live weather and 5-day forecasts for any city in the world. Pair it with the included React UI for a standalone weather app.

MCP Tools

`getWeather`

Returns current conditions for a given city.

Parameter	Type	Description
`city`	`string`	Name of the city

Returns: condition, temperature (°C), humidity (%), wind speed (km/h)

`getForecast`

Returns a 5-day daily forecast.

Parameter	Type	Description
`latitude`	`number`	Latitude
`longitude`	`number`	Longitude

Returns: daily high/low, precipitation, wind, weather code

Quickstart

1. Install dependencies

npm install

2. Register with Claude Code

claude mcp add weather-example npx tsx /path/to/main.ts

3. Ask Claude about the weather

What's the weather in Tokyo?
Will it rain in London this week?
Is it cold in New York right now?

Web UI

A React + Tailwind app with live city search, animated weather icons, current conditions, and a 5-day forecast strip.

→ ui-plum-five-69.vercel.app

Run locally:

cd ui
npm install
npm run dev

How it works

Claude → MCP tool call
           ↓
  Open-Meteo Geocoding API   (city name → lat/lon)
           ↓
  Open-Meteo Forecast API    (lat/lon → weather data)
           ↓
        Claude

Everything is free and open — no accounts, no keys, no rate limits for reasonable usage.