{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "get_weather",
    "arguments": { "city": "Haikou" }
  },
  "id": 1
}

{
  "jsonrpc": "2.0",
  "result": {
    "temperature": 30,
    "condition": "Sunny"
  },
  "id": 1
}

{
  "mcpServers": {
    "mcp-server-chart": {
      "command": "npx",
      "args": [
        "-y",
        "@antv/mcp-server-chart"
      ]
    }
  }
}

{
  "mcpServers": {
    "zhipu-web-search-sse": {
      "url": "https://open.bigmodel.cn/api/mcp/web_search/sse?Authorization={42cbd82f2de941c796a0c17c606f40d3.2SjOf60Nb6ycQ0Ct}"
    }
  }
}

iwr -useb https://astral.sh/uv/install.ps1 | iex
 
# 检测是否下载成功
uv --version     
uv 0.8.11 (f892276ac 2025-08-14)

# 安装依赖（根据 pyproject.toml 和 uv.lock）
uv sync
 
# 运行程序
uv run python main.py
 
#添加/删除依赖（会自动更新 pyproject.toml 与 uv.lock）
uv add requests
uv remove requests
 
# 固定/复现环境，严格按锁文件安装：
uv sync --frozen
 
# Python 版本（你的仓库已有 .python-version，uv 会按此安装/使用）
# 安装对应解释器：
uv python install
# 查看已装版本：
uv python list

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   Cherry        │◄──►│   MCP Server    │◄──►│  外部API服务     │
│   (客户端)       │    │  (你的代码)      │    │ (天气API等)      │
└─────────────────┘    └─────────────────┘    └─────────────────┘

from typing import Any
import httpx
from mcp.server.fastmcp import FastMCP
 
# Initialize FastMCP server
mcp = FastMCP("weather")
 
# Constants
NWS_API_BASE = "https://api.weather.gov"
USER_AGENT = "weather-app/1.0"
 
async def make_nws_request(url: str) -> dict[str, Any] | None:
    """Make a request to the NWS API with proper error handling."""
    headers = {
        "User-Agent": USER_AGENT,
        "Accept": "application/geo+json"
    }
    async with httpx.AsyncClient() as client:
        try:
            response = await client.get(url, headers=headers, timeout=30.0)
            response.raise_for_status()
            return response.json()
        except Exception:
            return None
 
def format_alert(feature: dict) -> str:
    """Format an alert feature into a readable string."""
    props = feature["properties"]
    return f"""
Event: {props.get('event', 'Unknown')}
Area: {props.get('areaDesc', 'Unknown')}
Severity: {props.get('severity', 'Unknown')}
Description: {props.get('description', 'No description available')}
Instructions: {props.get('instruction', 'No specific instructions provided')}
"""
 
@mcp.tool()
async def get_alerts(state: str) -> str:
    """Get weather alerts for a US state.
 
    Args:
        state: Two-letter US state code (e.g. CA, NY)
    """
    url = f"{NWS_API_BASE}/alerts/active/area/{state}"
    data = await make_nws_request(url)
 
    if not data or "features" not in data:
        return "Unable to fetch alerts or no alerts found."
 
    if not data["features"]:
        return "No active alerts for this state."
 
    alerts = [format_alert(feature) for feature in data["features"]]
    return "\n---\n".join(alerts)
 
@mcp.tool()
async def get_forecast(latitude: float, longitude: float) -> str:
    """Get weather forecast for a location.
 
    Args:
        latitude: Latitude of the location
        longitude: Longitude of the location
    """
    # First get the forecast grid endpoint
    points_url = f"{NWS_API_BASE}/points/{latitude},{longitude}"
    points_data = await make_nws_request(points_url)
 
    if not points_data:
        return "Unable to fetch forecast data for this location."
 
    # Get the forecast URL from the points response
    forecast_url = points_data["properties"]["forecast"]
    forecast_data = await make_nws_request(forecast_url)
 
    if not forecast_data:
        return "Unable to fetch detailed forecast."
 
    # Format the periods into a readable forecast
    periods = forecast_data["properties"]["periods"]
    forecasts = []
    for period in periods[:5]:  # Only show next 5 periods
        forecast = f"""
{period['name']}:
Temperature: {period['temperature']}°{period['temperatureUnit']}
Wind: {period['windSpeed']} {period['windDirection']}
Forecast: {period['detailedForecast']}
"""
        forecasts.append(forecast)
 
    return "\n---\n".join(forecasts)
 
if __name__ == "__main__":
    # Initialize and run the server
    mcp.run(transport='stdio')

{
  "mcpServers": {
    "weather": {
      "command": "uv",
      "args": [
        "--directory",
        "g:\\shared\\mcp-learn\\my-mcp-server",
        "run",
        "weather.py"
      ]
    }
  }
}

{
  "params": {
    "state": "CA"
  },
  "response": {
    "content": [
      {
        "type": "text",
        "text": "\nEvent: Wind Advisory\nArea: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range\nSeverity: Moderate\nDescription: * WHAT...North to northwest winds 20 to 30 mph with gusts up to 45\nmph.\n\n* WHERE...Santa Barbara County Southwestern Coast and Santa Ynez\nMountains Western Range.\n\n* WHEN...Until 5 AM PDT Friday.\n\n* IMPACTS...Gusty winds will blow around unsecured objects. Tree\nlimbs could be blown down and a few power outages may result.\nInstructions: Winds this strong can make driving difficult, especially for high\nprofile vehicles. Use extra caution.\n"
      }
    ],
    "structuredContent": {
      "result": "\nEvent: Wind Advisory\nArea: Santa Barbara County Southwestern Coast; Santa Ynez Mountains Western Range\nSeverity: Moderate\nDescription: * WHAT...North to northwest winds 20 to 30 mph with gusts up to 45\nmph.\n\n* WHERE...Santa Barbara County Southwestern Coast and Santa Ynez\nMountains Western Range.\n\n* WHEN...Until 5 AM PDT Friday.\n\n* IMPACTS...Gusty winds will blow around unsecured objects. Tree\nlimbs could be blown down and a few power outages may result.\nInstructions: Winds this strong can make driving difficult, especially for high\nprofile vehicles. Use extra caution.\n"
    },
    "isError": false
  }
}