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mcp-server-builder

Convert OpenAPI specifications into Python or TypeScript MCP server scaffolds.

Updated Apr 2, 2026
Search Tags:#API integration#OpenAPI#schema validation#MCP server#server scaffolding
One-click install
npx skills add https://github.com/4lerman/text_evaluator --skill mcp-server-builder-4lerman
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-server-builder
Source: https://github.com/4lerman/text_evaluator/tree/main/.agents/skills/engineering-advanced-skills/mcp-server-builder
Command: npx skills add https://github.com/4lerman/text_evaluator --skill mcp-server-builder-4lerman

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires openapi-to-mcp, mcp-validator, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill streamlines the creation of robust MCP servers from OpenAPI contracts, reducing manual development effort and ensuring schema quality.

Core Features & Use Cases

  • API Contract to Server Scaffolding: Automatically generate server scaffolds from OpenAPI contracts.
  • Schema Validation: Ensures that tool manifests adhere to required structures and standards.
  • Multi-Language Support: Supports Python and TypeScript for server implementation.
  • Use Case: For a team looking to quickly deploy a server that interacts with an API, this Skill automates much of the process, allowing for more efficient development.

Quick Start

Generate a Python server scaffold from your OpenAPI contract by running: python3 scripts/openapi_to_mcp.py --input openapi.json --server-name my-mcp --language python --output-dir ./generated --format text

Frequently Asked Questions about mcp-server-builder

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

FAQPage Schema
How do I generate an MCP server from an OpenAPI contract?▼

You can generate an MCP server from an OpenAPI contract by running a conversion script that parses your OpenAPI specification and outputs server scaffolds in Python or TypeScript. This automates manual server setup and ensures schema quality through validation.

Can I build a Python MCP server using an OpenAPI specification?▼

Yes, you can build a Python MCP server using an OpenAPI specification. The tool supports both Python and TypeScript, automatically scaffolding the server implementation from your validated API contract.

Does MCP server scaffolding include schema validation for tool manifests?▼

Yes, MCP server scaffolding includes schema validation for tool manifests. A dedicated validator ensures that the generated server manifests adhere to required structures and standards before deployment.

What is the best way to automate API integration for an MCP server?▼

The best way to automate API integration for an MCP server is to use a scaffolding tool that directly converts OpenAPI specifications into server code. This eliminates manual development effort and ensures production-ready schema quality through validation.

Do I need an existing OpenAPI specification to create an MCP server?▼

Yes, you need an existing OpenAPI specification to create an MCP server using this approach. The OpenAPI contract serves as the required input for generating the server scaffold and validating the resulting tool manifests.

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