ChatGPT Web / App Connection
A step-by-step guide to finding and connecting the Codebase app inside ChatGPT, based on OpenAI’s official apps documentation.
OpenAI has consolidated the older "connectors" terminology into "apps". The current user-facing flow centers on ChatGPT Settings > Apps and the app directory.
Last verified: 2026-04-17
Screenshots are replaced automatically when you update the matching files under frontend/public/docs/apps/chatgpt.
Before you start
- Your Codebase workspace and the target app flow should already be ready to connect.
- You must be signed in to ChatGPT, and Apps must be available for your current plan or workspace.
- On workspace plans, admin settings can affect whether custom apps are available.
Connection steps
Open the Apps entry point in ChatGPT
Start from Settings > Apps or the app directory, following OpenAI’s official help docs. The exact UI labels can vary by plan and workspace settings.
Replace this file with your screenshot
Put the final screenshot in the exact path below. The docs page will start rendering it automatically without any code changes.
frontend/public/docs/apps/chatgpt/01-entry.pngFind the Codebase app or custom app flow
Look for Codebase directly in the app directory. If a custom app flow is available, start the connection from there instead.
Replace this file with your screenshot
Put the final screenshot in the exact path below. The docs page will start rendering it automatically without any code changes.
frontend/public/docs/apps/chatgpt/02-open-connect.pngFinish sign-in and authorization
If ChatGPT or Codebase shows a sign-in or permission prompt, approve it after reviewing the requested access. On first connect, double-check any data-sharing or usage permissions.
Replace this file with your screenshot
Put the final screenshot in the exact path below. The docs page will start rendering it automatically without any code changes.
frontend/public/docs/apps/chatgpt/03-auth.pngConfirm that the app can be invoked in chat
According to OpenAI’s docs, apps can be used via @ mention or the + menu in the composer. After connecting, call Codebase from a chat and run a quick test.
Replace this file with your screenshot
Put the final screenshot in the exact path below. The docs page will start rendering it automatically without any code changes.
frontend/public/docs/apps/chatgpt/04-complete.pngTest checklist
- Confirm that Codebase appears as connected in Settings > Apps.
- Confirm that Codebase can be selected via @ mention or the + menu.
- Run a short test prompt and verify that the app responds.
Troubleshooting
- If Apps does not appear, first check your plan, regional rollout status, and any workspace policy restrictions.
- If custom apps are missing, confirm that the workspace admin allows Drafts or custom apps.
- If the app still does not invoke after authorization, disconnect it, reconnect it, and open a fresh chat.
If you need to review connection state or permissions again, also check the Connected apps page.
Official sources
Apps in ChatGPT
User-facing app connection flow, including Settings > Apps, the app directory, and @ mention usage.
https://help.openai.com/en/articles/11487775-apps-in-chatgpt
Introducing apps in ChatGPT
Background on OpenAI’s apps terminology and the Apps SDK platform.
https://openai.com/index/introducing-apps-in-chatgpt/