Overview
MCP (Model Context Protocol) is how Claude Code connects to external tools and data sources — databases, APIs, custom servers. This is an index of the setup guides written while configuring MCP servers for different tools, plus the broader concept of Claude Code plugins, which can bundle an MCP server together with commands, agents, and hooks into one shareable package.
Guides
- Claude Code MCP Server Integration — start here. Covers the three transport types (stdio, SSE, HTTP), the three configuration scopes (local, project, user), where config lives, and general troubleshooting.
- PostgreSQL MCP Server Setup — connect Claude Code directly to a PostgreSQL database for querying schema and data during development.
- Whisper MCP Integration — a customized fork of the Whisper transcription MCP server that swaps the paid OpenAI API for a self-hosted endpoint, removing file-size limits and per-minute costs.
- WordPress MCP Server Integration — the custom stdio server bridging Claude Code to the WordPress REST API (the same integration used to publish this post). Includes the real troubleshooting story of why the official WordPress MCP plugin didn’t work.
- What is a Claude Code Plugin? — the higher-level packaging mechanism: bundle an MCP server together with commands, agents, and hooks into one distributable, installable unit.