MCP: Connecting to the Outside World

A visual introduction to the Model Context Protocol and how it extends Claude Code to APIs and databases.

MCP stands for Model Context Protocol. It is a protocol that lets Claude Code connect to external tools and data: databases, APIs, development tools, and more.

How Claude Code Extends with MCP

Claude Code

Your Database

queries it directly

GitHub

reads Issues and PRs

Notion

reads and writes

The Browser

sees the screen

Practical Examples of What MCP Makes Possible

Claude Code sees your database schema directly and writes precise queries
It reads Issues from GitHub and builds the requested features
It reviews and edits your project's Notion docs
It verifies the result in the browser after every change

MCP Servers are an advanced topic. There is a full course on it on this platform. Here we stop at the concept.