mcp-builder

Guide development of MCP servers in Python (FastMCP) or Node/TypeScript (MCP SDK).

Updated Mar 15, 2025

Search Tags:#api development #mcp #tool design #llm integration #typescript sdk #fastmcp #server building

Ready to run

npx skills add https://github.com/mrdonlee/dotfiles --skill mcp-builder-mrdonlee

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/mrdonlee/dotfiles/tree/main/.agents/skills/mcp-builder
Command: npx skills add https://github.com/mrdonlee/dotfiles --skill mcp-builder-mrdonlee

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill provides a comprehensive guide and resources for developing high-quality Model Context Protocol (MCP) servers, enabling Large Language Models (LLMs) to interact with external services through well-defined tools.

Core Features & Use Cases

MCP Server Development: Learn best practices for creating MCP servers in Python (FastMCP) or Node/TypeScript (MCP SDK).
Tool Design & Implementation: Guidance on naming conventions, input/output schemas, and annotations for effective LLM interaction.
Evaluation Framework: Understand how to create robust evaluations to test the LLM's ability to use your MCP server.
Use Case: You are building a new service and need to expose its API to LLMs. This Skill guides you through creating a robust MCP server that LLMs can easily understand and utilize to perform tasks like searching data, creating entries, or updating records.

Quick Start

Use the mcp-builder skill to get started building a new MCP server in Node.js.

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 expose my API to LLMs?▼

You can build an MCP server using the Node.js TypeScript SDK or Python FastMCP framework, following best practices for tool design, input/output schemas, and annotations to enable LLMs to interact with your external APIs.

What is the best way to design tools for an MCP server?▼

Designing MCP server tools requires following specific naming conventions, defining clear input and output schemas, and applying annotations to ensure LLMs can accurately interpret and utilize the exposed API functions.

Can I use Python to create an MCP server, or do I need TypeScript?▼

You do not need TypeScript exclusively; you can create an MCP server using Python with the FastMCP framework, or use Node.js with the MCP TypeScript SDK, depending on your preferred development environment and existing tech stack.

How do I evaluate if an LLM can correctly use my MCP server?▼

You can evaluate LLM interaction with your MCP server by implementing a structured evaluation framework that tests the model's ability to accurately use defined tools and protocols for tasks like searching data or updating records.

Do I need the Anthropic SDK to develop a Model Context Protocol server?▼

Developing a Model Context Protocol server typically involves dependencies on the core MCP library and the Anthropic SDK to facilitate the LLM integration, ensuring your external services can communicate effectively with the model.