The Complete Production SOP: How to Deploy and Run MCP Transport Adapters: Stdio & SSE Web in Autonomous AI Agents

---
name: "mcp-stdio-sse-transport-adapters"
description: "Configure bidirectional MCP communication over local Stdio and HTTP Server-Sent Events."
metadata:
  author: "Model Context Protocol"
  version: "1.0.0"
  runtime_compatibility:
    - "codex"
    - "claude-code"
    - "cursor"
    - "windsurf"
triggers:
  - "configure mcp stdio transport"
  - "setup mcp sse server"
  - "connect remote mcp server"
permissions:
  fs_read: true
  fs_write: "workspace"
  shell_exec: false
  net_access: false
---

import express from 'express';
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { SSEServerTransport } from '@modelcontextprotocol/sdk/server/sse.js';

export async function initStdioTransport(server: Server): Promise<void> {
  const transport = new StdioServerTransport();
  await server.connect(transport);
  console.error('[MCP Transport] Stdio transport successfully connected.');
}

export function initSseTransport(server: Server, port: number = 3001): void {
  const app = express();
  let sseTransport: SSEServerTransport | null = null;

  app.get('/sse', async (req, res) => {
    sseTransport = new SSEServerTransport('/message', res);
    await server.connect(sseTransport);
  });

  app.post('/message', async (req, res) => {
    if (!sseTransport) {
      res.status(400).send('SSE connection not established');
      return;
    }
    await sseTransport.handlePostMessage(req, res);
  });

  app.listen(port, () => {
    console.error(`[MCP Transport] SSE transport listening on port ${port}`);
  });
}