ChatGPT App Development (ChatGPT Plugins)
ChatGPT apps (formerly ChatGPT plugins) built with OpenAI's Apps SDK, so ChatGPT users can use your product, with your own UI, inside the chat.
What you get.
Hundreds of millions of people ask ChatGPT first. A ChatGPT app puts your product right in that conversation.
ChatGPT apps replaced the old ChatGPT plugins. Built with OpenAI's Apps SDK on top of MCP, they let ChatGPT call your product and show interactive UI (cards, lists, forms, maps) inside the chat. We design, build and prepare your app for the ChatGPT app directory.
What's included
App concept and use cases that suit chat
MCP server with Apps SDK tools for your product
Interactive in-chat UI components
Account linking with OAuth
Testing in ChatGPT developer mode
Directory submission: guidelines review, privacy policy and fixes after review (approval is at OpenAI's discretion)
Timeline & revisions
Data App: 3 weeks, 2 iterations of revisions
Interactive App: 6 weeks, 3 iterations of revisions
Directory Launch: 8 weeks, 3 iterations of revisions
How pricing works
Package prices shown are the one-time setup fee. A monthly fee for hosting, monitoring and updates follows (listed in each package), month-to-month with no lock-in.
Why Peham
We build and run our own software products (Tejarify, Rentive, DealDesk), so we know what it takes to ship and operate real software
We run our own MCP server in production for our internal portal, connected to Claude, Cursor and Grok Bot
Low risk to start
Month-to-month retainers with no lock-in
Monthly work starts within the first week
Revision rounds included, as listed in each package
Tell us what your users do in your product, and we'll sketch how it looks as a ChatGPT app.
Pick a starting point.
Every project is scoped with you. Choose the option closest to what you need and we'll tailor the proposal.
- 01
Data App
Best for letting ChatGPT search and act on your product without custom UI.
- MCP server with 5-10 tools
- Text and simple card responses
- Private use in your ChatGPT workspace
- Delivery: 3 weeks
- Revisions: 2 iterations
- 02
Interactive App
Best for a branded in-chat experience with UI, sign-in and write actions.
- Custom in-chat UI components
- OAuth account linking
- Write actions with confirmation
- 10-20 tools
- Delivery: 6 weeks
- Revisions: 3 iterations
- 03
Directory Launch
Best for public listing in the ChatGPT app directory.
- Everything in Interactive App
- Directory submission and review fixes
- Privacy policy and app listing content
- Usage analytics
- Delivery: 8 weeks
- Revisions: 3 iterations