MCP HTTP/SSE Ruby Server

A simple Model Context Protocol (MCP) server implemented in Ruby using the mcp SDK, exposing tools over HTTP (SSE).

Features

• greet: A simple tool that echoes back a message.

Setup

1. Install Ruby: Ensure you have Ruby 3.0+ installed.
2. Install Dependencies: bash bundle install or bash make install

Running the Server

To run the server locally via HTTP (SSE) on port 8080:

bundle exec ruby main.rb

or

make run

The server will be available at http://localhost:8080.

Testing

Run tests with RSpec:

make test

Linting

Run RuboCop:

make lint

Development

Use the following make commands for common tasks:

• make all: Install, test, and lint.
• make format: Auto-format code with RuboCop.
• make clean: Clean up dependencies and lockfiles.