Create and share 3D architectural projects.
Turn your property into a living digital twin. Visualize, organize, and manage every part of your building from one 3D canvas.
- GPT-6 Astra
- Fable 5.1
- Gemini 3.8
Uses AI credits.
Everything you need to work with spaces in 3D.
Scan your space, flip it into 3D, or sketch something new in the browser. No heavy tools, no steep learning curve — just instant freedom to start building.
Move walls, swap furniture, test layouts, play with styles. Edit is where ideas stop being “what if” and start looking real.
Show, don’t tell. Walk through your vision in first person and let others feel the space as if it already exists.
Start building
Endless applications
Scan. Generate. Furnish. Render.
Pascal Capture
Build with SDF/CSG shapes that blend, merge, and carve naturally. Like clay, but parametric.
Generate with AI
Sketch directly onto your model. Strokes become solid geometry instantly.
Pascal Studio
Iridescent, holographic, glass, procedural. The most eye-catching renders use these.
Asset library
Thousands of ready-made 3D objects. Drop in and start modifying.
Open source. Make it your own.
Pascal isn't a black box. The viewer, the editor and the scene engine are published on npm and developed in the open — embed them, extend them, or let AI agents drive them.
Build on the engine.
Every Pascal surface ships on npm — drop the viewer or the full editor straight into your own product.
Plugins
Pascal is MIT-licensed and built in the open. Fork the repo, file an issue, or bring your own IFC models in.
AI ready
An MCP server lets agents read and reshape Pascal scenes — rooms, objects, materials and building systems.
// Pascal MCP — let agents reason over a space
const space = await pascal.load('building.ifc')
await space.agent.run('find rooms under 12m²')Built for developers and AI agents
Pascal models a building as a semantic scene graph of sites, buildings, levels, walls, slabs, ceilings, roofs, stairs, zones, doors, windows and furniture. Every element stays editable, so a model an agent builds is one a person can open, correct and keep working on, and a model a person draws is one an agent can read and change.
Connect an AI agent over MCP
The hosted MCP server at https://editor.pascal.app/api/mcp speaks Streamable HTTP and works with Claude, Claude Code, Codex, Cursor, VS Code with GitHub Copilot and any other MCP client. Its tools create, inspect, edit, validate and save scenes, read and upload project files, and call paid services such as Studio renders under a credit ceiling you set. Claude and Cursor sign in through the browser; other clients use an API key. See Connect an AI agent.
Build on the Scene API and the Pascal API
The Scene API reads and writes projects over REST and streams live edits as server-sent events, described by an OpenAPI 3.1 document. The Pascal API serves the Architect in the OpenAI Responses and Chat Completions formats, so the OpenAI SDKs and the AI SDK can build a project in the background, cap the credits a turn spends and download the finished 3D file. See Pascal API (v1).
Run it locally, embed it, extend it
Start the open-source editor on your own machine with the Pascal CLI, or self-host it with Docker. Put a live, interactive scene on any website with one iframe, drop the viewer or the full editor into your product from npm, or write a plugin that adds new node types and tools.
Readable by machines
Agents can fetch this page as Markdown at /index.md or by asking for text/markdown, read /llms.txt and /agents.md for instructions, and discover every interface through the API catalog. API errors are JSON with a machine-readable code, and every response reports its rate-limit budget.
Questions developers and agents ask
- Is Pascal Editor free?
- Building, editing and sharing projects is free, and the editor is open source. Credits pay for AI work: assistant messages, Studio renders, generated items and materials, and site pulls. Pascal Pro is $100 per seat per month with 25,000 credits a month, and Pascal Max is $200 per seat per month with 100,000 credits a month.
- Can an AI agent edit my Pascal project?
- Yes. Connect the agent to the hosted MCP server or the Scene API with your own Pascal identity, through browser OAuth in Claude and Cursor or with an API key you create in Settings. Its edits land in the same project you open in the editor, and you can review, undo and keep editing them by hand.
- Which file formats can I export?
- A scene downloads as GLB, USDZ, STL, OBJ or IFC4, as 3D-print-ready parts, or as a PDF floor plan. GLB carries materials and textures. Publishing a project also bakes a web-ready copy for fast viewing and embedding.
- Can I run Pascal on my own machine?
- Yes. npx @pascal-app/cli editor starts the open-source editor locally with its own project store and MCP connector, and the same editor can be self-hosted with Docker. Local projects stay on your machine unless you choose to share them.
- Is Pascal open source?
- The viewer, the editor, the scene engine and the MCP server are MIT-licensed on GitHub at pascalorg/editor and published on npm as @pascal-app packages, so you can embed or extend them in your own product.
Get building now
Open Pascal and turn it into something interactive, useful, and shareable.
Start building
