fastmcp

npx skills add majiayu000/claude-skill-registry --skill fastmcp-jpoutrin-product-forge --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

# FastMCP Development Skill FastMCP is a TypeScript framework for building Model Context Protocol (MCP) servers. This skill provides patterns for tools, resources, prompts, authentication, and transport configuration. ## Installation ```bash npm install fastmcp ``` ## Basic Server Setup ```typescript import { FastMCP } from "fastmcp"; import { z } from "zod"; const server = new FastMCP({ name: "My Server", version: "1.0.0", }); server.start({ transportType: "stdio" }); ``` ## Tools ### Basic Tool with Zod Schema ```typescript server.addTool({ name: "add", description: "Add two numbers", parameters: z.object({ a: z.number(), b: z.number(), }), execute: async (args) => { return String(args.a + args.b); }, }); ``` ### Tool Without Parameters ```typescript server.addTool({ name: "sayHello", description: "Say hello", execute: async () => { return "Hello, world!"; }, }); ``` ### Tool with Logging ```typescript server.addTool({ name: "download", parameters: z.object({ url: z.string() }), execute: async (args, { log }) => { log.info("Downloading file...", { url: args.url }); // ... process ... log.info("Downloaded file"); return "done"; }, }); ``` ### Tool with Progress Reporting ```typesc

npm install fastmcp
Development mode with hot reload
npx fastmcp dev src/server.ts
HTTP streaming transport
npx fastmcp dev src/server.ts --transport http-stream --port 8080
Stateless mode
npx fastmcp dev src/server.ts --transport http-stream --port 8080 --stateless true
Or via environment variable