MCP Weather Server

A Model Context Protocol (MCP) server that provides weather information tools accessible via the streamable-http transport.

Overview

This MCP weather server provides a simple weather lookup tool that can be used by MCP clients to get weather information for any city.

The server runs on port 8081 using the streamable-http transport protocol.

Prerequisites

• Python 3.13+

Installation

uv sync

Running

uv run main.py

The server will start on http://localhost:8081/mcp and wait for MCP client connections.

Architecture

• FastMCP: Simplified MCP server framework
• streamable-http: Transport protocol for server-client communication
• Tool Definitions: Weather lookup tool exposed as an MCP tool

API Endpoints

The server provides a streamable-http endpoint at:

http://localhost:8081/mcp

Tools

get_weather(city: str) -> str

Returns weather information for a given city.

Parameters:

• city (str): The name of the city to get weather for

Returns:

• Weather information as a string

Example:

get_weather("New York")
# Returns: "The weather in New York is sunny."

Dependencies

• mcp: Model Context Protocol library
• fastmcp: Simplified MCP server framework