OpenAI Apps MCP

Build ChatGPT apps with MCP servers on Cloudflare Workers.

IndexedNOASSERTION★ 784

Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/coco-research-openai-apps-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Build ChatGPT apps with MCP servers on Cloudflare Workers. Extend ChatGPT with custom tools and interactive widgets (HTML/JS UI). Use when: developing ChatGPT extensions, implementing MCP servers, or troubleshooting CORS, widget 404s, MIME types, ASSETS binding errors, Next.js integration issues, or edge platform limitations.

Use cases: design, frontend, cloud, agent-building

Reviews

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools: No tools found
Secrets: None asked for
Install scripts: None found
Runs as: Node.js package

Network hosts it talks to 1

codeload.github.com · found in install command

Files it touches

~/.claude/skills/openai-apps-mcp

What's inside

Skill name: OpenAI Apps MCP
Description: Build ChatGPT apps with MCP servers on Cloudflare Workers. Extend ChatGPT with custom tools and interactive widgets (HTML/JS UI). Use when: developing ChatGPT extensions, implementing MCP servers, or troubleshooting CORS, widget 404s, MIME types, ASSETS binding errors, Next.js integration issues, or edge platform limitations.
License: NOASSERTION
Instructions: 501 lines in SKILL.md · view on GitHub

Before installing

Ships executable scripts
Instructions call the network

Agent Skills spec issues

name: only lowercase letters, digits and single hyphens allowed
name: "OpenAI Apps MCP" does not match folder "openai-apps-mcp"
allowed-tools: must be a space-separated string
body: 501 lines (spec recommends under 500)

Files (8)

SKILL.md
example-template.txt · assets/
example-reference.md · references/
openai-metadata-format.md · references/
example-script.sh · scripts/
package.json · templates/basic/
vite.config.ts · templates/basic/
wrangler.jsonc · templates/basic/

The license isn't open source, so the instructions aren't shown here. Read SKILL.md on GitHub

Signals

Stars: 784
Forks: 13
Open issues: 55
Last commit (this folder): Aug 2, 2026 (2 months ago)
Last release: Oct 23, 2026 (5 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License: NOASSERTION
Repository: github.com/coco-research/coco
Website: cocoresearch.org/coco/
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: GitHub github-graphql

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Cite this page

OpenAI Apps MCP skill. Agent Mart. https://agentmart.dev/skills/coco-research-openai-apps-mcp (last updated 2026-10-24)