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Claude Code1 min read
Claude Code MCPs — extending what Claude can do.
MCP servers give Claude access to tools beyond your filesystem. Here's the practical use case for non-engineers.
Overview
MCP (Model Context Protocol) servers are how Claude Code connects to external tools — databases, APIs, third-party services. For most CW-2 graduates, you'll never write an MCP server, but knowing they exist matters.
What MCP unlocks
• Claude can query your database directly to debug data issues.
• Claude can call your deployed API and test endpoints.
• Claude can read from Notion, Linear, GitHub Issues, etc., via official MCP servers.
When you'll want one
Once your site has a database (e.g. Neon Postgres), an MCP server for that DB lets Claude help you debug data issues without you exporting CSVs.
How to add one
Edit your
.mcp.json in the repo root. Add the server config (the docs for each MCP server are clear). Restart Claude Code; the new tools appear. PreviousClaude Code subagents — what they are and when to use one.Next Claude Code skills — packaging your favourite workflows.
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