Who it is for
Developers building product frontends in Codex who also need payment and database wiring.
Overview
What Build Web Apps does
This Codex plugin concentrates on the frontend surface of a web application. It creates visual assets through Codex, then checks the result using the Browser plugin and the built-in app browser.
Three named integrations shape the rest of the work: shadcn/ui for composing the interface, Stripe for payments, and Supabase or Postgres for the data layer. The included skills match that list and add React practices plus frontend testing and debugging.
It runs interactively with read and write access. The example prompt, designing a landing page for a SaaS product, indicates the kind of task it expects.
What stands out
Generated visuals are verified in a browser instead of being left unchecked after generation.
Availability
Where Build Web Apps is listed
Build Web Apps is listed in the ChatGPT apps directory only. OpenAI has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
In the ChatGPT apps directory
- Developer
- OpenAI
- Filed under
- Developer Tools
- Listed since
- April 2026
- Authentication
- Authenticates when installed
- Website
- openai.com
- Policies published
- Privacy policy · Terms of service
- Official listing
- Open in ChatGPT
- Snapshot
- August 2026
Named skills
Build Web Apps declares 6 named skills, which puts it in the 6.7% of ChatGPT-listed apps that do.
- frontend-app-builder
- frontend-testing-debugging
- react-best-practices
- shadcn
- stripe-best-practices
- supabase-postgres-best-practices
Example prompts from the listing
- Design a new landing page for my new SaaS product.
Same company
More from OpenAI
Build iOS Apps
iOS development workflows for SwiftUI and Xcode
ChatGPT
Build macOS Apps
macOS app development, debugging, and packaging guidance
ChatGPT
Build Web Data Visualization
Design and build browser-based charts and dashboards
ChatGPT
Codex Security
Security scanning workflows for code and diffs
ChatGPT
Nearby
Other Developer Tools connectors
Build Web Data Visualization
Design and build browser-based charts and dashboards
ChatGPT
Deplixo
Deploy a web app to a live URL in one call
Claude
v0
Generate and preview full-stack apps with Vercel's v0
Claude
Web on Demand Website Builder
Build and publish websites from a conversation
ChatGPT
Adalo
No-code mobile and web app building by chat
ChatGPT
Base44
AI app and website building from a description
Claude · ChatGPT
This is an independent catalogue entry compiled by Node8 from Build Web Apps's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with OpenAI, and inclusion here is not an endorsement.
Want your company reachable inside ChatGPT and Claude?
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.