Bun-based MCP Server
Description
# Bun-based MCP Server This is a minimal Model Context Protocol (MCP) server using Bun, TypeScript, and the `@modelcontextprotocol/sdk` package. It demonstrates: - StdioServerTransport for local testing - A basic example tool (`add`) that adds two numbers - Dynamic tool loading…
About
# Bun-based MCP Server This is a minimal Model Context Protocol (MCP) server using Bun, TypeScript, and the `@modelcontextprotocol/sdk` package. It demonstrates: - StdioServerTransport for local testing - A basic example tool (`add`) that adds two numbers - Dynamic tool loading from a (mocked) PostgreSQL database -…
Details
- Author
- moikas-code
- Downloads
- 221
- Categories
- Developer Tools
Jump to
- Minimal MCP server built with Bun and TypeScript
- Uses StdioServerTransport for local testing
- Strict TypeScript and ESLint configuration
- Example add tool (returns sum of two numbers)
- Dynamic tool loading simulated from a PostgreSQL database
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
Bun-based MCP ServerCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
Install Bun, then run bun install to install dependencies. Start the server with bun run src/index.ts; it listens for MCP requests via stdio. Lint with bun run lint and type-check with bun run tsc.
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"bun-based mcp server": {
"mcp-server-moikas-code": {
"command": "bun",
"args": [
"run",
"src/index.ts"
]
}
}
}
}McpServers
{
"mcp-server-moikas-code": {
"command": "bun",
"args": [
"run",
"src/index.ts"
]
}
}Bun-based MCP Server
This is a minimal Model Context Protocol (MCP) server using Bun, TypeScript, and the @modelcontextprotocol/sdk package. It demonstrates:
- StdioServerTransport for local testing
- A basic example tool (add) that adds two numbers
- Dynamic tool loading from a (mocked) PostgreSQL database
- Strict TypeScript and ESLint configuration
Setup
1. Install Bun.
2. Install dependencies:
bun install
Usage
Start the server:
bun run src/index.ts
The server will listen for MCP requests via stdio.
Tool Loading
The function load_tools_from_db simulates loading tool definitions and handlers from a PostgreSQL database. Replace this with real database logic as needed.
Example Tool
The add tool takes two numbers (a and b) and returns their sum as result.
Linting
bun run lint
Type Checking
bun run tsc
File Structure
- src/index.ts: Main server entry point
- tsconfig.json: TypeScript configuration
- .eslintrc.json: ESLint configuration
- package.json: Project metadata and scripts
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