fastmcp/dist/bin/fastmcp.js

A TypeScript framework for building MCP servers.

#!/usr/bin/env node

// src/bin/fastmcp.ts
import yargs from "yargs";
import { hideBin } from "yargs/helpers";
import { execa } from "execa";
await yargs(hideBin(process.argv)).scriptName("fastmcp").command(
  "dev <file>",
  "Start a development server",
  (yargs2) => {
    return yargs2.positional("file", {
      type: "string",
      describe: "The path to the server file",
      demandOption: true
    });
  },
  async (argv) => {
    try {
      await execa({
        stdin: "inherit",
        stdout: "inherit",
        stderr: "inherit"
      })`npx @wong2/mcp-cli npx tsx ${argv.file}`;
    } catch {
      process.exit(1);
    }
  }
).command(
  "inspect <file>",
  "Inspect a server file",
  (yargs2) => {
    return yargs2.positional("file", {
      type: "string",
      describe: "The path to the server file",
      demandOption: true
    });
  },
  async (argv) => {
    try {
      await execa({
        stdout: "inherit",
        stderr: "inherit"
      })`npx @modelcontextprotocol/inspector npx tsx ${argv.file}`;
    } catch {
      process.exit(1);
    }
  }
).help().parseAsync();
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