I built a free Interactive MCP Config & .cursorrules Generator for Claude Desktop and Cursor

Description and use

Genesis Config Builder automatically generates MCP and .cursorrules configurations for Claude Desktop and Cursor, eliminating manual setup and ensuring isolated execution via uvx.

Problem

Managing configurations across different AI coding environments like Claude Desktop, Cursor, and Windsurf leads to tedious boilerplate, syntax discrepancies, and fragile manual setups.

Outcome

The tool produces ready‑to‑use configuration files for Claude Desktop, Cursor, and .cursorrules, streamlining setup and enforcing strict agent behavior.

Workflow

• Open https://johannschiffer.github.io/
• Select target AI client (Claude Desktop or Cursor) and stack (e.g., Python/FastAPI)
• Toggle desired capabilities
• View real‑time generated JSON and .cursorrules output
• Copy or download the configs
• Apply them to the respective client directories
• Run the MCP server with uvx for isolated execution

Evidence

Managing configurations across different AI coding environments like Claude Desktop, Cursor, and Windsurf often leads to tedious boilerplate, syntax discrepancies, and fragile manual setups.

Source

I built and open-sourced Genesis, a web-based interactive builder that generates production-grade Model Context Protocol (MCP) configs and contextual .cursorrules in real time.

Source

Because it uses uvx, you do not need to clone the repository or install Python dependencies manually. The client handles execution isolation automatically.

Source