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mcp-builder

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use whe...

Claude CodeClaude.aiClaude APIChecked 2026-11-01
The answer

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools.

Install

/plugin marketplace add anthropics/skills
/plugin install example-skills@anthropic-agent-skills

Author's take / 作者点评

Excellent for scaffolding MCP servers; our stdio echo server worked end-to-end. Best for tool-gateway authors; keep first demos local/stdio.

搭 MCP 很实用，本地 stdio echo 全流程跑通；适合工具网关作者，首版先做本地 stdio。

What it does

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

This entry summarizes the public skill for discovery. Prefer the upstream SKILL.md for the full instruction text (we do not paste restricted or lengthy proprietary prompt bodies).

Install & usage

Claude Code (plugin marketplace)

/plugin marketplace add anthropics/skills
/plugin install example-skills@anthropic-agent-skills

Or copy this skill folder into your project:

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

Then ask Claude Code to use the mcp-builder skill for a matching task.

Best for

Designing production-quality MCP servers (Python/Node) with eval hooks.

Hands-on test

  • test_level: fully-tested
  • Ran: yes
  • When: 2026-11-01T01:20:00+08:00 (Asia/Shanghai)
  • Result: Built a stdio JSON-RPC echo MCP server and completed initialize/tools/list/tools/call locally (echo returned mcp-ok).
  • Gotchas: Full TypeScript/cloud MCP templates still need Node tooling; start with a minimal stdio server for free local tests.

Money-saving tip

Pair with Claude Pro annual ($17/mo effective vs $20 monthly per claude.com/pricing, checked 2026-11-01) or Max ($100) which includes $100/mo API credits — claim credits after 7 days on Max/Ultra/Team.

Source & license