mcp-builder

Scaffold MCP servers with TypeScript or Python SDKs.

1|1|Updated Apr 15, 2026
One-click install
npx skills add https://github.com/evalops/maestro --skill mcp-builder-evalops
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/evalops/maestro/tree/main/skills/mcp-builder
Command: npx skills add https://github.com/evalops/maestro --skill mcp-builder-evalops

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

MCP Server Development Guide helps developers design, implement, and test MCP servers that enable LLMs to interact with external services through well-structured tools, mirroring best practices from both TypeScript and Python ecosystems.

Core Features & Use Cases

  • Provides end-to-end guidance for MCP server design, tool registration patterns, input/output validation, and error handling.
  • Demonstrates how to structure a server using the MCP SDKs (TypeScript and Python) with examples for common integration tasks.
  • Covers reference architectures, testing, and evaluation workflows to ensure production-grade quality.

Quick Start

Scaffold your first MCP server by following the TypeScript or Python SDK examples and register a basic tool.

Frequently Asked Questions about mcp-builder

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

FAQPage Schema
How do I build a production-grade MCP server using TypeScript or Python?

To build a production-grade MCP server, you scaffold it using the TypeScript or Python SDKs. This involves configuring the transport layer, defining structured tools, and enforcing input validation via Zod or Pydantic.

How do I validate inputs for MCP server tools?

You validate inputs for MCP server tools by applying schema validation libraries. The server implementation enforces input validation via Zod for TypeScript SDKs and Pydantic for Python SDKs to ensure data integrity.

Can I use MCP servers for fintech and SaaS integrations?

Yes, you can use MCP servers for fintech and SaaS integrations. The server scaffolding applies to building production-grade solutions across fintech, SaaS integrations, and data automation tasks to enable LLMs to interact with external services.

What's the best way to structure error handling in an MCP server?

The best way to structure error handling in an MCP server is to follow the end-to-end guidance provided by the SDK. It enforces structured tool definitions and error handling alongside reference architectures to ensure production-grade quality.

How do I test and evaluate an MCP server before deployment?

You test and evaluate an MCP server by following the covered testing and evaluation workflows. The development guide includes reference architectures and workflows designed to ensure production-grade quality before deployment.

Why do I need structured tool definitions in my MCP server?

You need structured tool definitions in your MCP server to enable LLMs to safely interact with external services. They enforce input validation via Zod or Pydantic and standardize error handling across your integration tasks.