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OpenAI Apps MCP

Develop ChatGPT apps with stateless MCP servers on Cloudflare Workers.

54|Updated Nov 19, 2025
Search Tags:#serverless#mcp#cloudflare workers#openai#widget development#chatgpt apps
One-click install
npx skills add https://github.com/dennislee928/Ethic-Latex --skill openai-apps-mcp-dennislee928
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: OpenAI Apps MCP
Source: https://github.com/dennislee928/Ethic-Latex/tree/main/.claude/skills/openai-apps-mcp
Command: npx skills add https://github.com/dennislee928/Ethic-Latex --skill openai-apps-mcp-dennislee928

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires @modelcontextprotocol/sdk, hono, zod, @cloudflare/vite-plugin, vite, wrangler, and includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill streamlines the development of custom applications for the ChatGPT Apps marketplace, enabling users to extend ChatGPT's capabilities with interactive widgets and custom tools.

Core Features & Use Cases

  • Stateless MCP Server Setup: Implement Model Context Protocol servers on Cloudflare Workers for OpenAI integrations.
  • Widget Development: Create interactive HTML/JS widgets that run within ChatGPT conversations.
  • Use Case: Develop a custom stock-ticker widget for ChatGPT that fetches real-time stock data via an MCP tool and displays it interactively within the chat interface.

Quick Start

Use the OpenAI Apps MCP skill to scaffold a new ChatGPT app project and deploy it to Cloudflare Workers.

Frequently Asked Questions about OpenAI Apps MCP

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

FAQPage Schema
How do I build ChatGPT apps using an MCP server on Cloudflare Workers?▼

To build ChatGPT apps, you deploy a stateless Model Context Protocol (MCP) server on Cloudflare Workers to facilitate custom tools and interactive HTML/JS widgets for OpenAI integrations.

How do I create interactive widgets for ChatGPT conversations?▼

Create interactive HTML/JS widgets for ChatGPT conversations by developing custom tools through a stateless MCP server, enabling dynamic content display like real-time stock tickers within the chat interface.

Why does my ChatGPT widget deployment fail due to CORS or MIME types on Cloudflare Workers?▼

ChatGPT widget deployments fail due to incorrect CORS configurations, widget URI patterns, or MIME types, which this Skill specifically addresses to resolve Cloudflare Workers limitations during OpenAI integrations.

Can I use Hono and Zod to develop MCP servers for OpenAI integrations?▼

Yes, you can use Hono and Zod alongside the Model Context Protocol SDK to develop stateless MCP servers, facilitating the creation and deployment of custom tools for the ChatGPT Apps marketplace.

What is the best way to scaffold a ChatGPT app project for the marketplace?▼

The best way to scaffold a ChatGPT app project is using this Skill to quickly set up a stateless MCP server on Cloudflare Workers, streamlining the deployment of custom tools and interactive widgets.

Do I need serverless computing to run Model Context Protocol servers for OpenAI?▼

You need serverless computing like Cloudflare Workers to run stateless Model Context Protocol servers efficiently, providing the necessary environment to host custom tools and integrate them with OpenAI's ChatGPT platform.

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