---
title: "MCP Server Development Guide"
type: skill
id: "anthropic-skills/mcp-builder"
category: "Engineering"
publisher: "Anthropic"
license: "Apache-2.0"
source: "https://github.com/anthropics/skills/tree/ca45fc4"
canonical: "https://labs.pho.chat/en/skills/anthropic-skills/mcp-builder"
open_in_pho: "https://pho.chat/customize?item=anthropic-skills%2Fmcp-builder&utm_source=labs&utm_medium=skill-page&utm_campaign=skills-library"
---

# MCP Server Development Guide

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).

Source: Anthropic (Apache 2.0), copied at a pinned commit. Free to use. Part of the Phở Skills library (https://labs.pho.chat/en/skills).

## What it covers
- Overview
- 🚀 High-Level Workflow
  - Phase 1: Deep Research and Planning
  - Phase 2: Implementation
  - Phase 3: Review and Test
  - Phase 4: Create Evaluations
- 📚 Documentation Library
  - Core MCP Documentation (Load First)
  - SDK Documentation (Load During Phase 1/2)
  - Language-Specific Implementation Guides (Load During Phase 2)
  - Evaluation Guide (Load During Phase 4)

## Use it
- In Phở: open https://pho.chat/customize?item=anthropic-skills%2Fmcp-builder&utm_source=labs&utm_medium=skill-page&utm_campaign=skills-library and press Try, or add it so Phở loads it whenever a request matches. Phở works with your own API key (OpenAI, Anthropic, Google and others).
- Full instructions (original SKILL.md, unchanged): https://labs.pho.chat/skills/raw/anthropic-skills/mcp-builder/SKILL.md
- Original files: https://github.com/anthropics/skills/tree/ca45fc4 (Apache 2.0).
- Full machine-readable index: https://labs.pho.chat/skills.json