ClaudSkills / Engineering / architecture

Building Chatgpt Apps

Quality score: 70/100 · Category: Engineering · Sub-category: architecture

ai:mcp

Guides creation of ChatGPT Apps with interactive widgets using OpenAI Apps SDK and MCP servers. Use when building ChatGPT custom apps with visual UI components, embedded widgets, or rich interactive experiences. Covers widget architecture, MCP server setup with FastMCP, response metadata, and Developer Mode configuration. NOT when building standard MCP servers without widgets (use building-mcp-servers skill instead).

What this skill does

Building Chatgpt Apps is a production-ready Claude Code skill (quality score 70/100) in the architecture sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/building-chatgpt-apps/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when building ChatGPT custom apps with visual UI components, embedded widgets, or rich interactive experiences. Covers widget architecture, MCP server setup with FastMCP, response metadata, and Developer Mode configuration.

Who uses this skill

The Building Chatgpt Apps skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/building-chatgpt-apps
curl -L https://claudskills.com/skills/building-chatgpt-apps/SKILL.md \
  -o ~/.claude/skills/building-chatgpt-apps/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/building-chatgpt-apps/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/building-chatgpt-apps/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\building-chatgpt-apps\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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