MCP Python Demo

> LLM 使用的 deepseek-chat 因为只有v3有tools属性 (deepseek-reasoner是不行的)

chat_response = client.chat.completions.create(
    model="deepseek-chat", # 通过指定 model='deepseek-chat' 即可调用 DeepSeek-V3 V3有tools属性
    messages=messages,
    tools=available_tools,
    tool_choice="auto"
)

安装

pip install uv
uv init mcp-demo-python
git clone git@github.com:guobinqiu/mcp-demo-python.git
cd mcp-demo-python
uv venv
source .venv/bin/activate
uv add "mcp[cli]" httpx
uv add mcp openai python-dotenv
rm main.py

运行

运行前把.env文件里的OPENAI_API_KEY换成你自己的

source .venv/bin/activate
python client/main.py server/main.py

输出

[04/23/25 21:11:54] INFO     Processing request of type ListToolsRequest                                                                                 server.py:534
Connected to server with tools: ['get_alerts', 'get_forecast']
MCP Client Started!

Type your queries or 'quit' to exit.
Query: what's the weather in new york 

[04/23/25 21:12:09] INFO     Processing request of type ListToolsRequest                                                                                 server.py:534

[04/23/25 21:12:15] INFO     Processing request of type CallToolRequest                                                                                  server.py:534

                    INFO     HTTP Request: GET https://api.weather.gov/points/40.7128,-74.006 "HTTP/1.1 200 OK"                                        _client.py:1740

[04/23/25 21:12:16] INFO     HTTP Request: GET https://api.weather.gov/gridpoints/OKX/33,35/forecast "HTTP/1.1 200 OK"                                 _client.py:1740

[DEBUG] final_text[0] type: <class 'str'>, value: Here's the current weather forecast for New York:
Today:  
- Temperature: 73°F  
- Wind: 7 mph NW  
- Forecast: Mostly sunny, with a high near 73.
Tonight:  
- Temperature: 57°F  
- Wind: 3 to 7 mph SE  
- Forecast: Mostly clear.
Thursday:  
- Temperature: 68°F (falling to 64°F in the afternoon)  
- Wind: 3 to 12 mph SE  
- Forecast: Sunny.
Thursday Night:  
- Temperature: 56°F  
- Wind: 6 to 12 mph S  
- Forecast: Mostly clear.
Friday:  
- Temperature: 70°F (falling to 66°F in the afternoon)  
- Wind: 5 to 14 mph S  
- Forecast: Partly sunny.
Let me know if you'd like more details!
Here's the current weather forecast for New York:
Today:  
- Temperature: 73°F  
- Wind: 7 mph NW  
- Forecast: Mostly sunny, with a high near 73.
Tonight:  
- Temperature: 57°F  
- Wind: 3 to 7 mph SE  
- Forecast: Mostly clear.
Thursday:  
- Temperature: 68°F (falling to 64°F in the afternoon)  
- Wind: 3 to 12 mph SE  
- Forecast: Sunny.
Thursday Night:  
- Temperature: 56°F  
- Wind: 6 to 12 mph S  
- Forecast: Mostly clear.
Friday:  
- Temperature: 70°F (falling to 66°F in the afternoon)  
- Wind: 5 to 14 mph S  
- Forecast: Partly sunny.
Let me know if you'd like more details!
Query:

Golang版

> https://github.com/guobinqiu/mcp-demo-golang