#!/usr/bin/env node
import { FastMCP } from "fastmcp";
import { z } from "zod";
/**
* FastMCP Example Server
*
* This demonstrates using the FastMCP TypeScript framework
* which provides a simpler API on top of the official MCP SDK
*/
const server = new FastMCP({
name: "fastmcp-example-server",
version: "0.1.0",
});
// Add hello tool using FastMCP's simplified API
server.addTool({
name: "hello",
description: "A simple greeting tool that says hello",
parameters: z.object({
name: z.string().describe("The name to greet"),
}),
execute: async (args) => {
return `Hello, ${args.name}! Welcome to MCP!`;
},
});
// Add calculate tool
server.addTool({
name: "calculate",
description: "Perform basic arithmetic calculations",
parameters: z.object({
operation: z.enum(["add", "subtract", "multiply", "divide"]).describe("The arithmetic operation to perform"),
a: z.number().describe("First number"),
b: z.number().describe("Second number"),
}),
execute: async (args) => {
const { operation, a, b } = args;
let result: number;
switch (operation) {
case "add":
result = a + b;
break;
case "subtract":
result = a - b;
break;
case "multiply":
result = a * b;
break;
case "divide":
if (b === 0) {
throw new Error("Division by zero is not allowed");
}
result = a / b;
break;
}
return `${a} ${operation} ${b} = ${result}`;
},
});
// Add a resource
server.addResource({
uri: "demo://example",
name: "Example Resource",
description: "A simple example resource",
mimeType: "text/plain",
async load() {
return {
text: "This is an example resource from the FastMCP server!",
};
},
});
// Add a prompt
server.addPrompt({
name: "greet_user",
description: "Generate a greeting message",
arguments: [
{
name: "name",
description: "The name of the person to greet",
required: true,
},
],
load: async (args) => {
const userName = args.name || "User";
return `Please create a friendly greeting for ${userName}. Make it warm and welcoming!`;
},
});
// Start the server
server.start({
transportType: "stdio",
});
