Basic Setup

• Install uv

• Create a project folder named fastmcp-demo-server

• Open the folder in VS Code

• Open terminal

• Execute the command: uv init

• uv add fastmcp

• Fastmcp version

• Create a basic server

• Test the server -uv run fastmcp dev main.py (MCP Inspector CMD)

• Run the server -uv run fastmcp run main.py

• Add the server to claude desktop - uv run fastmcp install claude-desktop main.py (For local server)

Use the same steps from above to create a Remote MCP Server and follow the below steps and for Local MCP Server just follow till the upper step.

• Test the server using MCP Inspector | This opens in browser just like FastAPI's page

• Create a GitHub repo

• git init

• git add

• git commit -m "Initial commit: Simple MCP Server"

• git remote add origin https://github.com/YourUsername/simple-mcp-server.git

• git push -u origin main

• Create an account on FastMCP Cloud

• Deploy on FastMCP Cloud

import random
from fastmcp import FastMCP

# Create a FastMCP server instance
mcp = FastMCP(name="Demo Server")

@mcp.tool
def roll_dice(n_dice: int=1) -> list[int]:
    """Roll n_dice 6 sided dice and return the results."""
    return [random.randint(1,6) for _ in range(n_dice)]

@mcp.toll
def add_numbers(a: float, b: float) -> float:
    """Add two numbers together."""
    return a + b

if __name___ == "__main__":
    mcp.run()