MCP Server for Bun and Elysia

@keithagroves

About MCP Server for Bun and Elysia

Model Context Protocol (MCP) Server for Bun and Elysia

Basic information

Category

Other

Runtime

node

Transports

stdio

Publisher

keithagroves

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "Elysia-mcp": {
      "command": "bun",
      "args": [
        "start"
      ]
    }
  }
}

Tools

No tools detected

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is MCP Server for Bun and Elysia?

It is an implementation of the Model Context Protocol (MCP) server using Bun and the Elysia web framework, enabling you to create high‑performance MCP servers that expose resources, tools, and prompts to LLMs through a standardized interface.

How to use MCP Server for Bun and Elysia?

Clone the repository, install dependencies with bun install, then start the server with bun start or bun dev for development with hot reloading. Build for production using bun run build. Use the provided TypeScript API to create an MCP server, add resources/tools/prompts, and connect it via SSE transport using the SSEElysiaTransport class.

Key features of MCP Server for Bun and Elysia

SSE transport implementation for Bun and Elysia
Complete MCP protocol support: resources, tools, and prompts
High performance thanks to Bun's JavaScript runtime
TypeScript support with proper type definitions
Easy‑to‑use API for creating MCP‑compatible servers

Use cases of MCP Server for Bun and Elysia

Exposing static or dynamic resources to large language models
Providing callable tools that LLMs can invoke for actions
Defining structured prompts for controlled LLM interactions
Building high‑performance MCP servers with SSE transport

FAQ from MCP Server for Bun and Elysia

What are the prerequisites for running the server?

Bun must be installed on your system. Basic familiarity with TypeScript and Elysia is recommended.

How do I start the server in development mode?

Use the command bun dev to start with hot reloading for development.

What transport does the server use?

It uses Server‑Sent Events (SSE) transport implemented in the SSEElysiaTransport class.

Can I debug the server?

Yes, use the MCP Inspector tool (npx @modelcontextprotocol/inspector) to list resources, tools, prompts, and test calls.

Is there a production build?

Yes, run bun run build to create a minified Node.js‑compatible build in the dist directory.

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