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You can hand some of the repetitive work to an AI assistant. Once it is connected, you ask it in plain words and it does the clicking for you. Things merchants actually use it for:
  • “List my design templates and tell me which ones aren’t live yet.”
  • “Copy the Besties canvas template and call it Besties Mug.”
  • “Add German, then translate the Besties option set into it.”
  • “Publish the Besties option set to the Besties Since Canvas product.”

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Connect it

Go to Preferences and open the AI access tab.
The AI access tab in Customei preferences showing the Connect an AI agent card with four highlighted buttons, Copy prompt for Claude, ChatGPT, Grok and Cursor, each with an arrow, and below an OR divider the MCP server URL field with a Copy button.

Preferences, AI access. Each button copies a ready-made prompt for one AI app.

1

Copy the prompt for your app

Click Copy prompt for Claude, ChatGPT, Grok, or Cursor. The arrow next to each button copies the prompt for that maker’s other app instead: Claude Code, Codex, Grok Build, or Cursor CLI.
2

Paste it into a new chat

If the app already has Customei, the assistant looks at your store and tells you in a few lines what it can do for you. If it doesn’t, the assistant tells you how to add Customei in that app, either the menu to open or the command to run. Follow what it says.
3

Sign in and approve

Your browser opens Customei’s sign-in page. Enter your store’s address (the prompt includes it, so the assistant can remind you), click Continue with Shopify, then click Allow. That’s it. There is no key to paste anywhere.
Using an app that has no button? Copy the MCP server URL under OR, add it in that app as a custom MCP server, and sign in. The address is the same for every store, so there is no secret in it.
The prompt is written in English, because the assistant is the one reading it. If your admin is in another language, the prompt asks the assistant to answer you in that language.
Don’t see AI access in Preferences yet? The same buttons are on customei.com/mcp.

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What it can and can’t do

When you sign in, the approval page lists the access the AI app asked for. Allow gives it all of that, and Deny gives it nothing. You can’t pick a smaller level on that page. Here is what that means in everyday tasks.

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Look things up (Read)

  • Find your design templates, option sets, and products, and tell you what is on each one.
  • Find an order by its number and tell you whether its print files are ready.
  • Read your translations and your list of fixed words for translations.
  • Search your assets for an image, mockup photo, font, or color by name.
  • Make a quick preview picture of a design.
  • Check an option set for mistakes, and tell you what would change on a product if you published it now.
  • Check whether the Customei app embed is turned on in your theme. If it is off, nothing shows on your product pages, so this is the first thing it checks when you say the options don’t show. If it is off, it gives you a link that opens your theme editor with it switched on, and you only click Save.
  • Read the custom CSS and JavaScript in Preferences, General, Custom code.

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Build and change things (Write)

  • Designs: create a design template, copy one, rename it, or delete it. Add, move, and change its layers. Add, remove, or reorder its mockup photos, and pick the one the product page opens on.
  • Option sets: create an option set, copy one, change its options, or delete it. It can also make an option set straight from a design template, with one option for every layer a shopper can change, already connected. It can give an option set without a design its design template.
  • Products: attach a design template to a product, change which option sets a product uses, or turn the live preview on its product page on or off.
  • Pictures: save a picture to your store from a web link, or from a file you gave it in the chat, ready to use in a design or as a choice.
  • Languages: add a language, translate an option set into it for you, fix single translations, and set words that must always be translated a certain way.
  • Print files: make an order’s failed print files again.
  • Custom code: change the custom CSS and JavaScript your product pages run. This one goes out to your store right away, without publishing.

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Go live (Publish)

  • Publish a product so customers see its options.
  • After you change an option set or design template, publish every product that still shows the old version, in one go.
  • Take a product back down.
Only connect an assistant you would trust with everything it asked for. Write can already change your custom code, which your customers see right away, and Publish puts products live. If you only want answers, ask Shopify Sidekick instead (see below). It can’t change anything.
An assistant works inside your account and can only see your own templates, option sets, folders, and products. It can never see another store’s. It also can’t do anything your plan doesn’t let you do in the app yourself.

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See what it did

Once an assistant has connected, two more sections appear on this tab. Connected apps lists every AI app joined to your account, when it was connected, and when it was last active. The activity log lists every single action an assistant took: the time, what it did, the level of access it used, and whether it worked or was refused. You can filter it by action or by result, and open a row to see the detail. Entries are kept for 90 days.
These two only show up after something has actually connected. If you have never connected an assistant, all you see is the card with the copy buttons.

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Cut off access

On the Connected apps row, click the bin icon and confirm. Access stops immediately. Whoever was using that assistant has to connect again from scratch if they want back in. Use it the moment someone leaves your team.

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Ask Shopify Sidekick about Customei

Shopify’s own assistant, Sidekick, also knows about Customei. There is nothing to set up: open Sidekick in your Shopify admin and ask. It can:
  • Explain how to do something in Customei, step by step.
  • Find an option set or design template by name and describe it.
  • Tell you which option sets are on a product, and whether that product is live or has changes waiting to be published.
  • Tell you whether the files your printer needs for an order are ready, still being made, or failed.
Sidekick only looks. It can’t change anything in Customei. To have an assistant make changes for you, connect one as shown above.

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Where to next

Selling in more than one language

One of the jobs worth handing over.

Assign products and go live

What publishing does, so you know what you’re approving.