MCP Workshop Starter

# Model Context Protocol — Workshop starter ## Ideas - Get public holidays: I have 15 remaining vacation days, use public holidays and optimize when to get them. - Get HDD free space: How many copies of War and Peace I can store in the remaining space on my HDD? - Convert timezones: What time in Valencia is 9am NY time? Here’s the agenda for the conference, show me the schedule in Sofia time. - Get latest news from RSS: What are the positive news from CNN? Summarize what’s happening in the USA right now in the style of Bill Hicks. - Get diff of pull request: Perform code review of this open source PR https://github.com/rails/rails/pull/55072 (hint if you append .diff to the URL you get the git diff patch) - Get Core Web Vitals for an URL: How can I improve the performance of this website https://www.flywire.com ## Resources - https://modelcontextprotocol.io/ - https://github.com/yjacquin/fast-mcp - https://github.com/geelen/mcp-remote ## Getting started with plain Ruby Install dependencies with: ``` gem install fast-mcp ``` ## Getting started with Sinatra Install dependencies with: ``` bundle install ``` Start the server with: ``` ruby sinatra.rb ``` ## Getting started with Node Install dependencies with: ``` npm install ``` ## Testing with MCP Inspector Start the official MCP inspector: ``` npx @modelcontextprotocol/inspector ``` Open http://127.0.0.1:6274/ and connect to you server: **Plain Ruby** - transport: stdio - command: ruby - arguments: /path/to/server.rb **Sinatra** - transport: sse - URL: http://127.0.0.1:4567/mcp/sse **Node** - transport: stdio - command: node - arguments: /path/to/build/index.js Go to **Tools** and explore. ## Testing with AI agent You can use the following clients: - Claude Desktop - Visual Studio Code - Cursor - Zed Follow its configuration to add the MCP server to the list of tools.