Build a ChatGPT App with AI
Emmanuel Paraskakis
Founder, Level 250 | 3x VP, API Products
Publish an App to OpenAI's Appstore, for 900 million users.
1 month of Fractal Pro included.
Do you ever wish you were building apps when the iPhone App Store got started?
ChatGPT has 900 million weekly users. They can install apps. Yours could be one of them.
The opportunity is real but the path is unclear. The SDK docs have errors. The submission form is hostile. The review process is opaque. Hidden requirements that aren't in any documentation. Most people give up before they ship.
In this workshop, you'll build a ChatGPT app from scratch using Fractal, a no-code builder for MCP apps. You'll learn the Know / Do / Show framework for what makes a good app, set up developer mode to test locally, and walk through the full submission process including every undocumented gotcha.
You'll leave with a working ChatGPT app you tested in developer mode, a month of Fractal Pro to keep building, and a submission checklist covering every rejection reason.
There are about 600 apps in the directory today. This is the early iPhone App Store. The builders who show up now will have a head start when the ecosystem takes off.
Walk in with an idea. Walk out with an app ready for 900 million users.
What you’ll learn
Workshop agenda
Optional: Introductions
Join early to introduce yourself and meet participants before the workshop starts.
What MCP Apps Bring to AI
MCP Apps are UI for Chat. How ChatGPT Apps relate to MCP, why the 900M+ weekly user base matters, and what the directory looks like today. Live tour.
What Makes a Great ChatGPT App
The Know / Do / Show framework. Know: live data. Do: take actions. Show: better visualizations. Real examples from the directory. What OpenAI looks for.
UI Patterns You Can Use
Inline cards, carousels, fullscreen, picture-in-picture. When ChatGPT surfaces your app and when it doesn't. Golden prompts and tool naming as UX.
Build a Working ChatGPT App and Test It
Build a ChatGPT app from a prompt using Fractal. Define tools, set annotations, preview it. Then enable Developer Mode in ChatGPT and test it live.
What to Watch Out For So You Don't Get Rejected
Start small. Prompts and metadata ARE the UX. The pre-publishing checklist. Every technical, UX, and content reason apps get rejected.
The Submission Process - Harder Than It Should Be
The full 6-step form walkthrough. Undocumented requirements: icon specs, domain verification, demo video, privacy policy. Every gotcha exposed.
Optional: Q&A and Next Steps
Extended Q&A, rejection fixes, and the future of AI apps. Your ChatGPT apps will work in Claude too.
Learn directly from Emmanuel
Emmanuel Paraskakis
3x VP Product (Apiary, Swagger, Oracle) | 1.3M APIs | Agent-ready APIs & MCP
Who this workshop is for
Product Managers who want to ship a ChatGPT app for their product and navigate the submission process.
Founders and Makers who want to get into the ChatGPT directory early - about 390 apps today, like the iPhone Appstore in 2008, but for AI.
Engineers who want to prototype their first ChatGPT app with no-code tools and skip the undocumented gotchas.
What's included
Live sessions
Learn directly from Emmanuel Paraskakis in a real-time, interactive format.
Lifetime access
Go back to course content and recordings whenever you need to.
Community of peers
Stay accountable and share insights with like-minded professionals.
Certificate of completion
Share your new skills with your employer or on LinkedIn.
Maven Guarantee
Your purchase is backed by the Maven Guarantee.
Frequently asked questions
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Reimbursement
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Everything L&D needs: email template, receipts, and certificate of completion.
Get reimbursedTeam discount
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Save 20%+ when 2 or more teammates enroll in the same cohort.
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