Anthropic

MCP Builder — Development skill for Claude Code

Development official Advanced

Guide for creating high-quality MCP servers to integrate external APIs and services.

How to install MCP Builder

Installs to ~/.claude/skills/mcp-builder/

Terminal

git clone --depth 1 https://github.com/anthropics/skills /tmp/skills \
  && mkdir -p ~/.claude/skills \
  && cp -r /tmp/skills/skills/mcp-builder ~/.claude/skills/mcp-builder

Clones the whole repository, because a skill folder can carry scripts and resources beside its SKILL.md.

What MCP Builder does

Create MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Covers deep research and planning, API coverage vs workflow tools, tool naming conventions, and implementation in Python (FastMCP) or Node/TypeScript.

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When Claude uses MCP Builder

Trigger

When building MCP servers to integrate external APIs or services

Tools it reaches for:

WriteReadBash

Alternatives in Development

MCP Python SDK — Python SDK for building MCP servers 22.3k ★
Claude Plugins Official — Anthropic-managed directory of high quality Claude Code Plugins 14.9k ★
Implementation Plan — You are tasked with creating detailed implementation plans through an interactive, iterative process 10k ★