# mcp-builder

Agent skill by Anthropic (https://github.com/anthropics/skills)

Covers designing the tools rather than just exposing an API, in Python with FastMCP or in TypeScript with the MCP SDK. Most of the value is in the part about what makes a tool legible to a model.

Topics: Systems
Last updated: 2026-04-20 (5 months ago)
Source: https://github.com/anthropics/skills
Repository: https://github.com/anthropics/skills

## Install

```bash
npx skills add https://github.com/anthropics/skills --skill mcp-builder
```

## In the author's words

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).

## Verification

- Source link: Resolved (HTTP 200) (pass)
- Repository: Resolves on GitHub (pass)
- Install command: Transcribed from the author's own page (pass)
- Maintenance: Last updated 5 months ago (pass)
- Attribution: Credited to Anthropic (pass)

Full page: https://stackskills.dev/library/mcp-builder