3D New Era AI

English · Português (Brasil) · Website · Try it in the browser

An open-source home design, floor plan and interior design editor written in Rust, built so that your AI can design with you. It ships with a Model Context Protocol server: Claude, ChatGPT, Codex, Gemini, Cursor or any other MCP client draws the walls, furnishes the rooms, builds the joinery, checks lighting and ergonomics against real standards and renders the photos, while every change shows up live on screen and is one Ctrl+Z away.

A Sweet Home 3D alternative for Windows, macOS, Linux and the browser, in English, Portuguese, Spanish and French.

Three ways to use it

The desktop app and the browser editor are free, open source and need no account. The hosted connector is free within a quota; see pricing.

Install

Windows — in PowerShell:

irm https://raw.githubusercontent.com/leandrodaf/3d-new-era-ai/main/scripts/install-windows.ps1 | iex

macOS (Apple Silicon and Intel) — in Terminal:

curl -fsSL https://raw.githubusercontent.com/leandrodaf/3d-new-era-ai/main/scripts/install-macos.sh | bash

or with Homebrew: brew install --cask leandrodaf/tap/3d-new-era-ai.

The installers work for your user only, with no administrator password: the app appears in the Start menu or Launchpad, newera goes on your PATH, the MCP server is registered in Claude Code and Codex if you have them, and running the same command again updates it. Uninstall with install-macos.sh --uninstall, or from Settings → Apps on Windows.

Prefer a plain download?

Connect your AI

Hosted, nothing to install. In Claude or ChatGPT, add a custom connector with the address https://mcp.3dneweraai.com/mcp and sign in with your email. Step by step: https://3dneweraai.com/connector/.

With the desktop app. The editor serves MCP at http://127.0.0.1:7878/mcp while it is open (or run newera serve for no window). The AI menu, or the MCP chip in the status bar, shows the snippet for your client, can register it for you, and lists the tools the agent calls as it calls them.

From a browser tab. Open https://3dneweraai.com/app/ and switch the MCP on in the AI panel (Ctrl+Shift+M). The tab gets an address your AI can reach through a small relay, because a tab cannot listen on a port. The relay passes messages and stores nothing; the project stays in the tab, and the address stops answering when you switch it off or close the tab. Treat that address like a password. Video rendering is not offered there, since it would hold the tab for minutes.

Then just ask, for example: "Draw a 4 × 5 m bedroom with a door and a window, furnish it and render a photo."

Client setup

One click, with the app installed:

Claude Desktop: download newera-mcp.mcpb from the latest release and open it.

Plugins with skills:

claude mcp add --transport http newera http://127.0.0.1:7878/mcp

codex mcp add newera --url http://127.0.0.1:7878/mcp

gemini mcp add --transport http newera http://127.0.0.1:7878/mcp

code --add-mcp '{"name":"newera","type":"http","url":"http://127.0.0.1:7878/mcp"}'

{ "mcpServers": { "newera": { "url": "http://127.0.0.1:7878/mcp" } } }

{ "mcpServers": { "newera": { "serverUrl": "http://127.0.0.1:7878/mcp" } } }

{ "mcpServers": { "newera": { "command": "npx", "args": ["-y", "mcp-remote", "http://127.0.0.1:7878/mcp"] } } }

{ "mcp": { "newera": { "type": "remote", "url": "http://127.0.0.1:7878/mcp" } } }

{ "mcpServers": { "newera": { "command": "newera", "args": ["mcp"] } } }

Showcase

A real 105 m² apartment, traced from an openly licensed floor plan and furnished, lit and photographed by an AI agent through MCP alone: walls from the scan, doors that swing the right way, a slatted TV wall, an L kitchen and wardrobes from cabinet_run, downlights sized by photometry against NBR ISO/CIE 8995-1, and path-traced photos. Every image below came out of the editor. See how it was built →

Floor plan with real finishes	Aerial cutaway

Daylight	At dusk, lamps on