#!/usr/bin/env node
import open from "open";
import { join, dirname } from "path";
import { fileURLToPath } from "url";
import handler from "serve-handler";
import http from "http";
const __dirname = dirname(fileURLToPath(import.meta.url));
const distPath = join(__dirname, "../dist");
const server = http.createServer((request, response) => {
const handlerOptions = {
public: distPath,
rewrites: [{ source: "/**", destination: "/index.html" }],
headers: [
{
// Ensure index.html is never cached
source: "index.html",
headers: [
{
key: "Cache-Control",
value: "no-cache, no-store, max-age=0",
},
],
},
{
// Allow long-term caching for hashed assets
source: "assets/**",
headers: [
{
key: "Cache-Control",
value: "public, max-age=31536000, immutable",
},
],
},
],
};
return handler(request, response, handlerOptions);
});
const port = parseInt(process.env.CLIENT_PORT || "6274", 10);
const host = process.env.HOST || "localhost";
server.on("listening", () => {
const url = process.env.INSPECTOR_URL || `http://${host}:${port}`;
console.log(`\n🚀 MCP Inspector is up and running at:\n ${url}\n`);
if (process.env.MCP_AUTO_OPEN_ENABLED !== "false") {
console.log(`🌐 Opening browser...`);
open(url);
}
});
server.on("error", (err) => {
if (err.message.includes(`EADDRINUSE`)) {
console.error(
`❌ MCP Inspector PORT IS IN USE at http://${host}:${port} ❌ `,
);
} else {
throw err;
}
});
server.listen(port, host);