Guide · Bring your own AI

Build in DEXTR with your own Claude Code or Codex

Connect the coding agent you already pay for, then build by asking it. Your plan does the thinking; DEXTR holds the canvas, every editor, your library and every version, so your credits go further and nothing gets lost in a chat.

Create accountOpen Integrations

Already signed in? Integrations has the same commands and shows the agents you have connected.

How it works

Your agent thinks. DEXTR keeps the work.

  1. You ask

    In Claude Code or Codex, in a terminal, an IDE or the desktop app: “Make a 6-slide pitch deck in DEXTR for my gym.”

  2. The DEXTR tools do it

    A small package runs on your computer. It turns the request into DEXTR's own design or 3D operations, checks the result and sends only the change, signed in as you.

  3. It's in your studio

    The deck, site, doc or scene appears in DEXTR with the change saved as a version. Open it, finish it by hand, present it or publish it.

Set up

About a minute, once

You need a DEXTR account, Claude Code (from Anthropic) or Codex (from OpenAI), and Node.js 20 or newer (nodejs.org). Nothing else to install.

Claude Code

  1. Add DEXTR

    Paste this into a terminal. It works in every folder and every Claude Code window from then on.

    claude mcp add --scope user voicex -e VOICEX_URL=https://www.dextr.studio -- npx -y https://www.dextr.studio/mcp/voicex-mcp-0.1.1.tgz

  2. Start Claude Code and say “Connect to DEXTR”

    DEXTR opens in your browser. Sign in if you need to and press Approve. Claude Code is connected.

    Connect to DEXTR

  3. Check it

    Ask which account it is using. It answers with your DEXTR account and what it can make.

    Which DEXTR account am I connected to?

Codex

  1. Add DEXTR

    Paste this into a terminal once.

    codex mcp add voicex --env VOICEX_URL=https://www.dextr.studio -- npx -y https://www.dextr.studio/mcp/voicex-mcp-0.1.1.tgz
    Prefer the config file? Add this to ~/.codex/config.toml
    [mcp_servers.voicex] command = "npx" args = ["-y", "https://www.dextr.studio/mcp/voicex-mcp-0.1.1.tgz"] env = { VOICEX_URL = "https://www.dextr.studio" }

  2. Start Codex and say “Connect to DEXTR”

    DEXTR opens in your browser. Press Approve, and Codex is connected.

    Connect to DEXTR

  3. Check it

    Ask which account it is using.

    Which DEXTR account am I connected to?

Sign in from a terminal instead

If your agent can't open a browser for you, run this, approve in the browser it opens, then start your agent.

VOICEX_URL=https://www.dextr.studio npx -y https://www.dextr.studio/mcp/voicex-mcp-0.1.1.tgz login

No browser at all (Codex Cloud, CI, a server)

Make a token on the Integrations page and give it to the agent as the environment variable VOICEX_TOKEN. It is shown once: treat it like a password.

What your agent can do

Fourteen tools, twelve kinds of project

3D scenesPresentationsSocial postsMagazinesPrintLogosWebsitesWhiteboardsEmailsDocsSheetsVector art

Connect and look

sign_in
Opens DEXTR in your browser to approve this computer.
whoami
Which account it is connected to, and what it can make.
get_guide
How to build in DEXTR: kinds, units and conventions.
list_projects
Your projects, newest first, with links.
get_project
Reads one project, or just the part it needs.
outline_pages
A readable outline of a deck, site, post or email.

Make and change

create_project
A new project of any kind, blank or filled in.
edit_pages
Adds, replaces and restyles pages with DEXTR's own design operations.
edit_scene
Adds, moves, combines and animates parts of a 3D scene, like the 3D AI Builder.
update_project
Any other precise change, as a small patch.
replace_document
A whole rewrite, when that is simpler.
get_schema
The exact fields of a kind, when it needs them.

Undo

list_versions
The versions kept before each of its changes (up to 30).
revert_to_version
Puts one back, keeping the current state too.

Then just ask

Things to try

  • Presentations

    “Make a 6-slide pitch deck in DEXTR for a neighbourhood gym, with a title slide, three reasons to join and pricing.”

    Make a 6-slide pitch deck in DEXTR for a neighbourhood gym, with a title slide, three reasons to join and pricing.
  • 3D

    “In my DEXTR 3D scene “Courtyard studio”, add a slowly rotating cube on the table and soften the lighting.”

    In my DEXTR 3D scene “Courtyard studio”, add a slowly rotating cube on the table and soften the lighting.
  • Social

    “Turn my DEXTR deck “Gym pitch” into three Instagram posts that share its main points.”

    Turn my DEXTR deck “Gym pitch” into three Instagram posts that share its main points.
  • Docs

    “Write a DEXTR doc from these notes, with headings and a short summary at the top: …”

    Write a DEXTR doc from these notes, with headings and a short summary at the top: …
  • Sheets

    “Build a DEXTR sheet that budgets the launch event, with totals and a 10% contingency.”

    Build a DEXTR sheet that budgets the launch event, with totals and a 10% contingency.
  • Websites

    “Make a one-page DEXTR website for my bakery: hero, menu, opening hours and contact.”

    Make a one-page DEXTR website for my bakery: hero, menu, opening hours and contact.

Then: “Undo the last change”, “Show me the versions of my gym deck”, or “Go back to the version before the pricing slide”.

What DEXTR adds

More than a chat can hold

  • Every editor to finish by hand

    What your agent makes opens in the same editors as everything else: the 3D editor, Presentations, Websites, Docs, Sheets and the rest, with AI Builder beside each one.

  • Your work in one place

    Agent-made projects sit in your DEXTR account next to your recordings, videos, images, audio and each brand's kit, not in a chat history you have to scroll back through.

  • Versions you can go back to

    Before each change the agent makes, DEXTR keeps the previous state: the last 30 per project. Ask your agent to undo, or go back to any of them.

  • Design memory

    DEXTR keeps playbooks of what works for each kind of piece. Its own AI Builder reads them every time it builds, and they improve, after review, from the builds people rate. Your agent works from DEXTR's guide and the same design operations.

Good to know

Questions

What does it cost?
No AI costs in DEXTR. The thinking happens in Claude Code or Codex, on the Claude or ChatGPT plan you already pay for, and DEXTR makes no AI calls for it, so nothing is added to your AI at cost. You need a DEXTR account to keep the projects: £29 a month (or £290 a year) for the studio, after a week free. AI you use inside DEXTR itself, such as transcription or AI Builder, is billed at exactly what Claude, ElevenLabs and OpenAI charge us, no mark-up, and you can set a monthly cap and see every cost on the Billing page.
Why does it make my credits go further?
Your agent doesn't have to write whole documents. The package turns its requests into DEXTR's own design and 3D operations on your computer, checks them, and sends only the change. The model spends its tokens on deciding what to make, not on writing out every coordinate and colour.
What can it see?
Only your projects of the kinds listed on this page, and only from computers you approve. Not your recordings, billing, brand accounts or anyone else's work.
Can it publish or post for me?
No. It cannot share, post or send anything. If a website or design is already shared, its link shows the agent's changes as it shows yours.
Can I edit while it works?
Yes, but not the same project at the same moment. If you save first, the agent re-reads your version and adds its change on top. An editor that is already open doesn't pick up the agent's changes yet, so reload the project before you carry on editing it.
Where do I see the versions?
Through your agent for now: ask it to list the versions of a project or to go back to one. There is no version list inside the DEXTR editors yet.
Which kinds can't it work on yet?
Video timelines, brand kits, events, funnels, the image library and 3D scans. They each live elsewhere in DEXTR and get their own connection later.
How do I stop it?
Press Disconnect on the Integrations page. It stops at once, on every computer that used it. The changes it already made stay, with their versions.

Your plan for the thinking. DEXTR for the work.

One week free. Connect Claude Code or Codex from Integrations once you are in.

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