Nuit, from inside Claude.

Connect Nuit to Claude and develop a project in conversation — exteriors, floor plans, interiors and a master plan, branched and edited on the same project you open in the studio. It runs on your Nuit account and your credits.

How to connect

Connect in Claude

Connector URL https://mcp.nuit.archi/

1 Open connector settingsOn claude.ai open Settings, then Connectors.
2 Add a custom connectorChoose Add custom connector. Name it Nuit and paste the connector URL.
3 Sign in to NuitPress Connect. Sign in with your Nuit account and allow access. New to Nuit? Create an account there; it starts with 300 free credits.
4 Use it in a chatTurn Nuit on from the tools menu of a conversation and ask. Claude Desktop and the mobile apps pick up the connector from the same Claude account.

What to ask

Write the way you would brief a colleague. Claude picks the project, the mode and the image to branch from. Images and edits spend credits as soon as they run; if you want to approve each run, tell Claude to ask first.

Start a project for a two-storey timber house on a sloping 600 m² plot and show me four exterior options.
Branch from the second option: one mono-pitch roof rising towards the slope, everything else unchanged.
Pull the upper floor back by two metres to make a terrace over the living room.
Replace the brick cladding with vertical larch boards and deepen the window reveals.
Write the brief: ground floor — living, kitchen, study, guest WC; first floor — three bedrooms, two baths. Then draw the ground-floor plan.
Draw the master bedroom on the first floor from the saved plan: oak floor, lime-plaster walls, a built-in wardrobe along the party wall.
Lay out a master plan for six terraced houses around a shared courtyard, parking at the edge of the site.
I am stuck on this facade. Suggest three directions for the window rhythm and run the one I pick.

What it can do

The studio’s project, in a conversation.

Everything Claude makes lands in your Nuit project, so you can carry on in the studio at any point.

Projects and briefs

List your projects, including those shared with you, open one with its recent images, start a new project, and write the floor-plan brief — floors and rooms — that plans and interiors are drawn from.

Generate

Draw exteriors, floor plans per floor, interior rooms and a master plan, one to four images at a time. Branch from any image to try a variation without losing the original. Images take about 30–60 seconds; Claude checks on them and shows them when they are ready.

Edit

Change an existing image in place — roof, massing, openings, cladding — as a new version of the same card.

Browse and curate

Page through a project by mode, look at one image with where it sits in the tree, save the keepers to the portfolio and show the portfolio back.

Ideas

Ask for directions on an image: Claude reads its prompt history and the project brief, proposes options, and runs the one you choose.

Account

Check your credit balance. Credits are added on nuit.archi, never inside the chat.

3D model

The project as a 3D model, from the same conversation.

The same parametric model as the studio’s 3D mode: walls, openings, roof and rooms, edited by words and kept as versions.

Create a model

Claude prepares a parametric 3D model of the project from its brief and up to three of its images. A card shows the estimate; the model is built when you press Build, in a few minutes, and Claude checks on it.

Change it with words

Ask for a change to the model — storeys, roof, massing, openings, cladding — and it is rebuilt as a new version, with the earlier ones kept in its history.

See it in the chat

The current model appears as a viewer card in the conversation: turn it around, switch to materials or the floor plan. The build runs in your browser, so keep the chat open while it works.

Open it in the studio

Every answer carries a link to the project’s 3D mode in the studio (desktop): the same model and history, sliders and export. On a phone, or in a client without cards, the link is how a build is finished — the request is already filled in.

3D: what to ask and what it costs

Make a 3D model of this project from the brief and the saved exterior.
Add a third storey set back from the street facade, with a flat roof.
Change the roof to a gable running along the long side, 35° pitch.
Widen the ground-floor openings on the garden side to full-height glazing, three bays.

3D model from the briefA whole building; billed by the work it takes: About 140–300 credits
Change by wordsMore if the change rebuilds the model: About 20 credits
Viewing, studio link, sliders, export: Free

The card shows the estimate before you press Build; nothing is charged until then. Keep the chat open while it builds.

Credits and limits Pricing

The connector uses the same balance as the studio — no separate plan. Only runs that make or change something spend credits.

Image on Nuit M: 25 credits
Image on Nuit F Pro: 50 credits
Edit of an image: Same as a new image on that model
Images per request: 1–4
Reading projects, browsing, saving, ideas, balance: Free
New account: 300 credits

Access and privacy

The connector acts only as the Nuit account you signed in with. Claude sees your projects and the ones shared with you, and nothing else in Nuit. What it creates lands in your project, exactly as if you had made it in the studio.

To stop access, open Settings → Connectors in Claude and disconnect or remove Nuit. What you made stays in your Nuit account. Our privacy policy covers how Nuit handles your data.

Troubleshooting

Sign-in returns me to the Connect screen

Finish sign-in in the window that opens and allow access at the end. If it loops, sign in at studio.nuit.archi in the same browser first, then press Connect again. Private windows and strict tracker blocking can drop the sign-in.

Claude says it couldn’t reach Nuit

Ask again — a single failed call is usually temporary. If it keeps failing, open Settings → Connectors in Claude, remove Nuit and add it again with the URL https://mcp.nuit.archi/, then sign in.

I don’t see Add custom connector

Custom connectors depend on your Claude plan and, in a team or company account, on what the workspace owner allows. Ask the owner to add the connector for the workspace.

A generation was refused for credits

Ask Claude for your balance. Credits are added on nuit.archi/pricing; the new balance applies to the next request.

Floor plans or interiors won’t start

Both need the project’s floor-plan brief first, and an interior needs a saved plan for its floor. Describe the floors and rooms and ask Claude to write the brief, then draw and save the plan.

An image is still generating

An image takes about 30–60 seconds, Nuit F Pro one to two minutes. Claude checks on it; the card also appears in the project in the studio.

Where does the 3D model appear?

In the viewer card in the chat, and in the project’s 3D mode in the studio (desktop), with every version in its history.

Do I need to keep the chat open while it builds?

Yes. The build runs in your browser inside the card, for two to six minutes; closing the chat stops it, and the versions built so far are kept. A build that was never started costs nothing and expires after 30 minutes.

Can I build a model from my phone?

A phone may stop the build when the screen locks or you switch apps. Use the studio link on a computer instead: the request and images are already filled in.

How is a 3D build charged?

By the work it takes. The card shows the estimate before you start, from recent builds of the same kind, and a build stops before it passes twice its estimate.

Can I keep editing the model in the studio?

Yes. It is the same model: open the project’s 3D mode to move sliders, edit by words, or export IFC4 for Revit and Archicad, DXF, GLB or OBJ. Export is free.

Tool reference For reading tool calls in a chat

nuit_list_projects: Your projects, owned and shared.
nuit_get_project: One project with its brief and recent images.
nuit_create_project: Start a new project.
nuit_set_brief: Write or replace the floor-plan brief (floors and rooms).
nuit_generate: Exterior, floor plans, interiors or master plan; branch from an image. Spends credits.
nuit_generation_status: Check a running generation and show its images.
nuit_improve: Edit an image in place. Spends credits.
nuit_list_generations: Browse a project by mode, newest first.
nuit_get_image: One image with its parent, siblings and branches.
nuit_save_image: Save an image to the portfolio.
nuit_get_portfolio: Show the saved images by section.
nuit_suggest: Prompt history and brief for an image, to propose directions.
nuit_get_models: Models and their aspect ratios.
nuit_get_quota: Credit balance.
nuit_model_create: Prepare a 3D model from the project’s brief and images, with an estimate. Spends credits once you start it.
nuit_model_change: Change the 3D model with words, as a new version. Spends credits once you start it.
nuit_model_status: Progress and result of a 3D build; can cancel one that has not started.
nuit_view_3d: Show the current 3D model in a viewer card.
nuit_open_3d: A link that opens the project in the studio’s 3D mode.

One project, in the studio or in Claude.

Start free

300 credits on signup. No card required.