mcp-builder

Guide TypeScript and Python MCP server development with tool design and evaluation.

Updated Jan 29, 2026
One-click install
npx skills add https://github.com/NovaAI-innovation/Infinite-Agency --skill mcp-builder-novaai-innovation
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/NovaAI-innovation/Infinite-Agency/tree/main/.qwen/skills/mcp-builder
Command: npx skills add https://github.com/NovaAI-innovation/Infinite-Agency --skill mcp-builder-novaai-innovation

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

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

Core Features & Use Cases

  • Guided Development: Step-by-step process from research and planning to implementation, testing, and evaluation.
  • Language Support: Detailed guidance for both TypeScript (recommended) and Python implementations.
  • Best Practices: Adherence to MCP protocol specifications, tool design, response formatting, and security.
  • Evaluation Framework: Instructions and tools for creating rigorous evaluations to test server effectiveness.
  • Use Case: You need to build an MCP server that allows an LLM to interact with a company's internal API for retrieving customer data. This Skill guides you through designing the tools, implementing the server in TypeScript, and creating evaluations to ensure the LLM can accurately fetch and process customer information.

Quick Start

Follow the guide to implement an MCP server for your chosen service.

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 for LLM integration with external APIs?

To build an MCP server for LLM integration, follow a structured guide from research and planning to implementation and testing. It details tool design, standardized API protocols, and server infrastructure steps for both TypeScript and Python.

What is the Model Context Protocol and when do I need it for tool design?

The Model Context Protocol is a standardized protocol enabling Large Language Models to interact with external services. You need it when designing tools that allow LLMs to fetch and process information from external APIs.

Should I use TypeScript or Python for MCP server implementation?

TypeScript is recommended for MCP server implementation, though Python is fully supported. Both provide detailed guidance for developing robust server infrastructure, allowing you to choose based on your tech stack proficiency.

How do I create evaluations to test MCP server effectiveness?

To create evaluations for MCP server effectiveness, use the provided evaluation framework and instructions to rigorously test whether the LLM can accurately fetch and process external information through your designed tools.

What are the best practices for MCP tool design and response formatting?

MCP tool design best practices include adhering to protocol specifications, structuring robust response formatting, and implementing security measures to ensure LLMs reliably interact with external services.

Can I use this approach to connect an LLM to my company's internal customer data API?

Yes, you can use this approach to connect an LLM to internal APIs. The guide supports building servers for retrieving customer data, walking through tool design and server implementation to process information accurately.