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MCP Weather Server

@mr-ransel

代码仓库

基本信息

分类

媒体与设计

传输方式

stdio

作者

mr-ransel

关于 MCP Weather Server

暂无概览

#weather#fastapi#home-assistant

MCP Weather Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "openweathermap-sse-mcp-server": {
      "command": "python",
      "args": [
        "server.py"
      ]
    }
  }
}

MCP Weather Server 工具

工具列表暂未提供

当前收录暂时没有可展示的工具列表，不代表服务没有工具。请查阅项目文档了解支持的能力。

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is MCP Weather Server?

A FastAPI-based weather server that integrates with Home Assistant using the Model Context Protocol (MCP). It uses OpenWeatherMap’s One Call API 3.0 to provide comprehensive weather information including current conditions, daily forecasts (up to 7 days), and hourly forecasts (up to 48 hours) for any location.

How to use MCP Weather Server?

Install Python 3.7+, obtain an OpenWeatherMap API key with One Call API 3.0 access, clone the repository, install dependencies (pip install -r requirements.txt), configure the API key via environment variable (OPENWEATHER_API_KEY) or config.yaml, optionally set units and location overrides, then run python server.py. The server exposes a legacy REST API at /api/... and an MCP SSE endpoint at /mcp/sse with tools current_weather, hourly_forecast, and daily_forecast.

Key features of MCP Weather Server

  • MCP integration with Home Assistant via SSE transport
  • Legacy REST API for current, daily, and hourly forecasts
  • Configurable metric or imperial units (temperature, wind speed)
  • Location resolution with city, “City, State” (US), and full “City, State, Country” formats
  • Optional location overrides in config.yaml for ambiguous city names

Use cases of MCP Weather Server

  • Retrieve current weather and forecasts for Home Assistant automations and dashboards
  • Drive smart home decisions (e.g., adjust blinds, climate systems) based on daily or hourly weather data
  • Provide weather context to AI agents via the Model Context Protocol
  • Serve weather data over HTTP for other applications or integrations

常见问题

1

What API key is required?

An OpenWeatherMap API key with access to the One Call API 3.0 is required. It can be set via the `OPENWEATHER_API_KEY` environment variable or in `config.yaml` under `settings.api_key`.

2

How do I switch between metric and imperial units?

Set `units` to `"metric"` (default) or `"imperial"` in `config.yaml` under `settings`. Metric uses Celsius and m/s; imperial uses Fahrenheit and mph.

3

How does the server resolve location names?

It checks `overrides` first, then resolves city names directly, “City, State” as US locations, and full “City, State, Country” as given. Examples: “London” → London, England, GB; “Portland, OR” → Portland, Oregon, US.

4

What are the forecast limits?

Daily forecasts are available for up to 7 days; hourly forecasts for up to 48 hours. These limits are enforced by the MCP tool parameters and REST API query string.

5

What transport and authentication are used?

The MCP endpoint uses Server-Sent Events (SSE) at `/mcp/sse`. No authentication is described for the server itself; API key is used solely to authenticate with OpenWeatherMap.

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