Connect once

Connect Rect once.Then just keep chatting.

Rect appears when the work needs a screen—for decisions, reviews, plans, and anything you and your AI should finish together.

Talk casually
Rect appears
You act

Choose your AI

One page. The setup you need.

MCP is the recommended connection. Agents with terminal access can use the Rect CLI instead.

Connect in settings

Connect Rect to ChatGPT

Connect once, then keep chatting normally. With Rect available, ChatGPT can open a ready-made app when a decision, review, or plan needs a screen.

Recommended

Copy the official URL.

Rect MCP URL
  • Use only the official connection at .
  • Sign in through your browser. Never paste a password into chat.
  • Revoke the connection later from Rect settings.
One-time setup

Connect in three steps.

  1. 01

    Turn on Developer mode

    Open your profile menu, choose Settings, then Security and login. Scroll to Developer mode and turn it on.

  2. 02

    Add Rect to ChatGPT

    Open Plugins from the sidebar, choose Create app (+), and enter Rect with the server URL above. Keep OAuth selected, accept the safety notice, then choose Create.

  3. 03

    Keep chatting normally

    Approve the Rect sign-in in your browser. Once Rect appears under Installed, return to chat and ask for the outcome as usual.

ChatGPT connection guide
See it in ChatGPT

Here’s exactly where to click.

ChatGPT may move a label from time to time. Look for these two screens and you’ll be connected in a couple of minutes.

01

Enable Developer mode.

Open your profile menu, then go to Settings Security and login. Scroll to Developer mode and turn it on.

ChatGPT settings showing Developer mode enabled under Security and loginOpen full size
02

Add the Rect connection.

Open Plugins in the sidebar and choose Create app (+). Name it Rect, paste as the Server URL, and leave OAuth selected.

The safety notice is expected for any custom MCP server. Check the acknowledgement, choose Create, then approve the Rect sign-in in your browser.

ChatGPT New Plugin form filled with the Rect name and MCP server URLOpen full size

Developer mode and custom tool availability can depend on your ChatGPT account and workspace policy.

After setup

Try an ordinary request.

No need to mention Rect. This prompt is intentionally written like a normal conversation.

Try with ChatGPT
We have three possible launch strategies. Help my team compare the tradeoffs and choose one.

From then on

Chat is the start. Rect is where you finish.

01

Talk casually

Ask for a decision, review, plan, or structured outcome in your own words.

02

Rect appears

When a screen is more useful than prose, your AI prepares a ready-made app.

03

Keep going

Review, edit, or approve there. Your AI reads the result and continues.

For builders

Want to make your own Rect?

Build a reusable app once, then let any compatible AI prepare a fresh copy whenever the work comes back.

Read developer docs