@modelcontextprotocol/server-everything/dist/index.js

MCP server that exercises all the features of the MCP protocol

#!/usr/bin/env node
// The `mcp-server-everything` launcher: picks a transport from the first
// command-line argument (default `stdio`) and starts it.
//
// `run()` is exported and the start-up is guarded by `isEntryPoint()` (#4854),
// so a test can import this module and drive each branch in-process without
// the import itself starting a server on the test runner's stdio. Each
// transport module is still imported dynamically, so only the requested one
// initializes.
import { realpathSync } from "node:fs";
import { fileURLToPath } from "node:url";
/**
 * Start the transport named `scriptName`, or print the usage and exit 1 for an
 * unknown name.
 */
export async function run(scriptName) {
    try {
        // Dynamically import only the requested module to prevent all modules from initializing
        switch (scriptName) {
            case "stdio": {
                // Import and run the default server
                const { startStdioServer } = await import("./transports/stdio.js");
                await startStdioServer();
                break;
            }
            case "sse": {
                // Import and run the SSE server
                const { startSseServer } = await import("./transports/sse.js");
                startSseServer();
                break;
            }
            case "streamableHttp": {
                // Import and run the streamable HTTP server
                const { startStreamableHttpServer } = await import("./transports/streamableHttp.js");
                startStreamableHttpServer();
                break;
            }
            default:
                console.error(`-`.repeat(53));
                console.error(`  Everything Server Launcher`);
                console.error(`  Usage: node ./index.js [stdio|sse|streamableHttp]`);
                console.error(`  Default transport: stdio`);
                console.error(`-`.repeat(53));
                console.error(`Unknown transport: ${scriptName}`);
                console.log("Available transports:");
                console.log("- stdio");
                console.log("- sse");
                console.log("- streamableHttp");
                process.exit(1);
        }
    }
    catch (error) {
        console.error("Error running script:", error);
        process.exit(1);
    }
}
/**
 * Whether the module at `moduleUrl` is the script node was started with
 * (`argv1`). Both sides are resolved through symlinks, because the npm `bin`
 * shim that `npx` runs is a symlink to `dist/index.js`.
 */
export function isEntryPoint(argv1, moduleUrl) {
    if (!argv1)
        return false;
    try {
        return realpathSync(argv1) === realpathSync(fileURLToPath(moduleUrl));
    }
    catch {
        return false;
    }
}
/* v8 ignore next -- true only when node runs this file as the binary; the boot smoke (scripts/smoke-servers.mjs) covers that path */
if (isEntryPoint(process.argv[1], import.meta.url)) {
    await run(process.argv[2] || "stdio");
}