MCP Weather Server + Streamlit Chat Client

This repository provides a working implementation of an MCP Server (Model Context Protocol) that exposes a custom tool to fetch live U.S. weather alerts from the National Weather Service (NWS). The MCP server can be accessed through:

• ✔ Local Python IDE (via MCPAgent)

• ✔ Streamlit Chat UI (visual interface)

• ✔ Any MCP-compatible LLM client

Project Structure

mcpserver/
├── server/
│   ├── weather.py          # MCP server (FastMCP + NWS tool)
│   ├── weather.json        # MCP config file
│   └── app.py              # Streamlit chat UI
│   └── client.py           # Local IDE chat server
├── requirements.txt
└── README.md

Installation

1. Clone the repository

git clone https://github.com/Harshitpandey21/mcpserver.git
cd mcpserver

2. Install dependencies

 pip install -r requirements.txt

4. Set OpenAI API KEY

OPENAI_API_KEY = "YOUR_KEY_HERE"

Running the MCP Server Locally

The MCP server is defined in weather.py.

To start the server:

uv run mcp dev server/weather.py

Using from a Local IDE / Terminal Client

To start the server:

uv run server/client.py

Running the Streamlit Chat UI

To start the server:

streamlit run server/app.py

requirements.txt

langchain-openai
langchain-groq
streamlit
"mcp[cli]"
mcp-use