MCP with Langchain Sample Setup\
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Start MCP servers\
\ There are 3 sample MCP servers created in folder mcp_servers, each has 1 or 2 functions. Start and listen for requests on 3 different ports: 8000, 8001, and 8002.\ \
cd mcp_servers\
nohup python math_mcp_server.py \u003e math.log 2\u003e\u00261 \u0026\
nohup python weather_mcp_server.py \u003e weather.log 2\u003e\u00261 \u0026\
nohup python which_llm_to_use_mcp_server.py \u003e which_llm.log 2\u003e\u00261 \u0026\\
Start MCP client\
\ MCP client works as an interface bridging users and MCP servers.\ \
export OPENAI_API_KEY=sk-svcacct-Tn_rKHd............................your_key_please\
streamlit run my_chat_bot_app.py\\ The streamlit command will start a web UI listening on port 8501. You can play with the bot from there.