Bun SSE Transport for MCP

bun-mcp-sse-transport

A Server-Sent Events (SSE) transport implementation for the Model Context Protocol (MCP) using Bun.

Overview

This package provides a Bun-specific implementation of SSE transport for MCP servers. It enables real-time, one-way communication from server to client using the SSE protocol, with client-to-server communication handled via HTTP POST requests.

Key Features

Built specifically for Bun runtime
Implements the MCP transport interface
Manages SSE connections with proper headers
Handles incoming JSON-RPC messages
Simple integration with Bun.serve

Quick Usage

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { BunSSEServerTransport } from "bun-mcp-sse-transport";

// Create SSE transport
const transport = new BunSSEServerTransport("/messages");

// Connect to MCP server
const server = new McpServer({ name: "MyServer", version: "1.0.0" });
server.connect(transport);

// Set up Bun HTTP server
Bun.serve({
  port: 3000,
  routes: {
    "/sse": () => transport.createResponse(),
    "/messages": (req) => transport.handlePostMessage(req)
  }
});

How It Works

When a client connects to /sse, the server creates an SSE connection
The server sends the endpoint URL where the client should POST messages
The client sends JSON-RPC messages to the endpoint URL
The server receives these messages and passes them to the MCP server
The MCP server processes the messages and sends responses via the SSE connection

This implementation follows the MCP standard while leveraging Bun's streaming capabilities for efficient real-time communication.

This server cannot be installed

security - not tested

license - not found

quality - not tested

How are these scores calculated?

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Enables real-time communication between client and server using Server-Sent Events (SSE) for the Model Context Protocol, specifically built for the Bun JavaScript runtime.

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Bun SSE Transport for MCP

bun-mcp-sse-transport

Overview

Key Features

Quick Usage

How It Works

Related MCP Servers

MCP SSE Server

SSE MCP Server

Example MCP SSE Server

Skemati.ca MCP SSE Server

New MCP Servers

MCP directory API