A screen when you need one
Browse a list, review a record or work with a form. Bring an interactive interface into compatible chat hosts.
Build with KernelApps · Early accessSmall apps.
Small apps.
Real things done.
Right in your chat.
Turn an idea into an interactive app for ChatGPT and Claude. Build its screens, tools and data in one place. Then use it where the conversation happens.
No card to sign up. Start building with your Explore AI allowance.
Built for private connections inChatGPTClaude
From an idea to an appIllustrative example
“Build a reading shelf so I can save books and track what I’m reading.”
A LITTLE MORE READING
My reading shelf.
All books 3Reading 1Finished 1
THECREATIVEACT
The Creative Act
Rick Rubin
Reading58%
A FIELDGUIDE TONOTICING
A Field Guide to Noticing
Rob Walker
Want to readFOURTHOUSANDWEEKS
Four Thousand Weeks
Oliver Burkeman
FinishedKeep the conversation going.
↗“Add this book to my shelf.”
Interactive screens Managed data Visual editing Versioned releases
LESS SETUP. MORE USEFUL.An app is more than
An app is more than
a clever answer.
Give your conversations somewhere to keep information—and something useful to do with it.
Data that belongs to the app
Keep records in managed app data, so a bookmark or project is something you can return to and update.
Room to change your mind
Edit the app as your needs change. Review versions, update your release and return to an earlier version when needed.
THE BUILD → USE → UPDATE LOOPFrom “I wish I had…”
1 2 3
From “I wish I had…”
to “open my app.”
Describe something useful
Start with a focused idea: a reading list, a project tracker, or a place to save links. KernelApps prepares a supported app around managed data.
Make it yours
Review the screens, fields, tools and access requirements. Refine the app in the visual builder, manually or with AI assistance.
Connect and keep improving
Connect a private release in ChatGPT or Claude using the host’s setup flow. Review later changes as versions, with a path back to an earlier release.
You review what you connect. Each host has its own setup and access requirements. Public listings follow a separate review process.
START WITH SOMETHING YOU’LL USEYour everyday ideas.
Your everyday ideas.
A place to live.
Think focused tools for a real routine. These examples show the kinds of managed-data apps you can start with.
Bookmarks
A home for saved links
Save a useful page, organize your collection and find it again from a conversation.
“Show my saved design resources.”
Reading shelf
Your next great read
Keep a reading list, update your progress and see what you want to read next.
“What’s on my reading list?”
Projects & tasks
A little less loose ends
Give tasks a project, keep track of progress and return to the details that matter.
“Show the tasks for my launch.”
WHERE WE ARE TODAYUseful by design.
Useful by design.
Honest about early access.
Create a free account and build a supported app with your included AI allowance. Manual editing is included, with a focus on apps using KernelApps-managed data.
Bring your own ChatGPT or Claude account. External integrations depend on supported capabilities. Choose any paid upgrade or extra AI credit in your account, with the price shown before you confirm.
Explore plans and limitsA few things you might be wondering
The practical details before you start.
Early access focuses on apps backed by KernelApps-managed data: lists, records and workflows such as bookmarks, reading shelves and project tracking. What can be prepared depends on supported capabilities. Arbitrary external APIs and integrations are not a universal, self-service feature.
Yes. Create an Explore account without a card and build with your included creator-AI allowance. Manual editing is included. Your plan limits apply, and you choose and confirm any paid upgrade or top-up separately.
You connect your hosted app privately in each host, using its own connection flow and required account access. One app can be connected to both. Host subscriptions are separate, and a private connection does not create a public marketplace listing.
Model Context Protocol connects an AI host to your app’s tools and data. The MCP Apps extension also enables interactive app screens in compatible hosts. KernelApps brings the app screens, tools and managed data together.
Yes. Prepare and review a new version, then update the private release. Version management includes returning to an earlier release. Review changes to fields, tools and permissions before making them available.
AI assistance for creating and editing your app inside KernelApps. Manual editing does not use that allowance. Your conversations in ChatGPT or Claude are covered by your own host account, not by KernelApps.
Build your understanding before your app
Practical guides to MCP apps, private data, and discovery in ChatGPT and Claude.
A Simple Checklist for Your Business Information Online
Check your opening hours, contact details and service information across the places customers use.
Read guide →How to Ask Suppliers for Quotes You Can Compare
Prepare a consistent supplier quote request with a practical template and three fictional examples.
Read guide →How to Choose Who Follows Up With a Customer
Assign a clear follow-up owner, agree a backup and keep customer requests moving with a practical worksheet.
Read guide →START SMALL. MAKE IT USEFUL.What do you wish
What do you wish
you could open in chat?
Give your next idea a place to start.
Create free accountFree signup · No card · Manual editing included