How to use box by Simular with ChatGPT
Add box by Simular to ChatGPT as a custom MCP plugin. ChatGPT gets a cloud desktop with Chrome that stays signed in to your accounts. No terminal needed.
box by Simular lets ChatGPT do things on a computer for you. Add box once as a plugin, and ChatGPT gets a cloud desktop with Chrome that stays signed in to your accounts. Ask in plain words; ChatGPT does the clicking on the box and sends back the result.
What ChatGPT can do with box
- Get your invoices together. "Download my Amazon invoices from last month and give me a total." ChatGPT opens Amazon on the box, where you signed in once, and saves each invoice.
- Fill in long web forms. Copy details from a document on the box into a web form, page by page.
- Pick up where another agent stopped. Claude started a spreadsheet on the box; ChatGPT finishes it, with the same file still open.
Set up box in ChatGPT
You add box once, yourself, in a few clicks with no terminal: follow the ChatGPT steps in the MCP guide. After that, box works in the ChatGPT app too.
Use it in a chat
In a chat, type @ and pick box, then ask for a task.
Try these prompts
- "@box Open Chrome, search Google for 'Simular', and summarize the top 3 results."
- "@box Go to news.ycombinator.com and give me today's top 5 stories in a table."
- "@box Open my Amazon orders from last month and list each order with its total."
Watch it and take control
Open your box to watch the desktop live. When a step needs you, such as a sign-in, a code or a payment, take control and do it yourself, then hand it back.
What box adds to ChatGPT
| ChatGPT on its own | ChatGPT + box by Simular | |
|---|---|---|
| What it can use | A chatbot | A full desktop: Chrome, files, desktop apps and a shell |
| Logins | Not shared with your other AI apps | Your passwords and cookies stay in Chrome on the box; Claude, Gemini and your other agents use the same signed-in browser |
| Switching AI | Start over in another app | Same box, same files, same logins |
FAQ
- Do I need to code? No. You add one link in ChatGPT's settings and sign in.
- Does it use my ChatGPT plan? ChatGPT uses its own model. Model calls made by box's own tools use box credits.
- Will it pay for things without asking? No. box's own agent never enters payment details; it hands that step to you to take over on the box. Agents you connect are told to do the same.
- Where are my logins kept? Your passwords and cookies stay in Chrome on your box.
- Can Claude use the same box? Yes. Add box to Claude too; both share the same desktop and pick up each other's work.
Troubleshooting
box not in the @ menu, or can't add it? See the ChatGPT steps in the MCP guide and Troubleshooting.
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