How do I use Demo MCP Server?

1. Click on "Install Server". 2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state. 3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Demo MCP Server roll 3 dice for my board game" That's it! The server will respond to your query, and you can continue using it as needed. Here is a step-by-step guide with screenshots.

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()