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mcp-builder

Build MCP servers with FastMCP or MCP SDK for external service integration.

Updated Oct 19, 2025
Search Tags:#best practices#mcp#api integration#server development#tool design
One-click install
npx skills add https://github.com/az9713/claude_skill_hn_mcp_server --skill mcp-builder-az9713
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/az9713/claude_skill_hn_mcp_server/tree/main/.claude/skills/mcp-builder
Command: npx skills add https://github.com/az9713/claude_skill_hn_mcp_server --skill mcp-builder-az9713

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires anthropic, mcp, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill eliminates the complexity and guesswork from building Model Context Protocol (MCP) servers, providing a comprehensive framework for creating robust AI tool integrations.

Core Features & Use Cases

  • Comprehensive Development Guide: Step-by-step process from research to evaluation across Python and TypeScript implementations.
  • Best Practices Library: Complete reference materials covering naming conventions, tool design, response formats, and security standards.
  • Use Case: When you need to integrate an external API like GitHub or Slack with Claude, use this Skill to implement proper MCP server architecture following industry standards.

Quick Start

Use the mcp-builder skill to create a new MCP server for the Notion API following the four-phase workflow.

Frequently Asked Questions about mcp-builder

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build an MCP server to integrate external APIs with Claude?▼

Build an MCP server by designing well-defined tools with explicit registration, input schemas using Pydantic or Zod, and consistent response formats. This Skill provides a four-phase workflow covering research, implementation, testing, and evaluation across Python (FastMCP) and Node/TypeScript (MCP SDK) to expose external services to Claude.

What's the best way to design tool schemas and input validation for MCP servers?▼

MCP servers require strict typing with Pydantic (Python) or Zod (TypeScript), explicit tool titles and descriptions, input schemas for each parameter, and robust error handling. This Skill covers naming conventions, annotation standards, character limits, and multi-format outputs (JSON or Markdown) for production-ready tool design.

Can I use MCP with both Python and TypeScript implementations?▼

Yes. This Skill provides best-practices guidance for MCP servers across Python implementations using FastMCP and Node/TypeScript implementations using the MCP SDK, ensuring consistent tool design and response handling regardless of your language choice.

What are the key best practices for MCP server tool design?▼

MCP server best practices include workflow-oriented tool design, explicit input schema registration with titles and descriptions, strict type enforcement, pagination support, character limits, multi-format response options, and comprehensive error handling to ensure reliable LLM integration.

Do I need prior MCP experience to build a production server?▼

No. This Skill provides a comprehensive step-by-step development guide from initial research through evaluation, eliminating guesswork and establishing industry standards for MCP server architecture even for users new to the protocol.

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