Your team and agents,
building and shipping in 3D

Spline is a 3D design tool in the browser, where your team and its agents build in one shared editor.

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How it works

From prompt to production in one file

Planning the scene
01 · Prompt

Your agent

Claude, ChatGPT, Cursor, Codex, or one you built. Anything that speaks MCP.

02 · Connect

Spline MCP

Tools to read the scene, write to it, frame a view and look at the result. Read the setup guide.

AgentAna
03 · Build

The editor

Every change lands as an operation in a live file. Your team sees it happen, and can undo, comment or take over.

04 · Ship

Everywhere

Publish to the web, drop it into React, or run it natively on iOS and Android.

Built with Spline

Where ideas become
production-ready experiences

Mars Rover

A Mars game with two rovers to drive across the dunes.

Make your own
Editor

Everything you need to build in 3D

  • ModelPrimitives, booleans, sculpting and 3D generation.
  • Materials and lightLayered materials, lights and post-processing.
  • Animation and interactionStates, keyframes, events and physics.
  • PerformanceHigh-performance real-time 3D.

Or ask an agent, in the editor or over MCP.

Collaboration

Agents build. Designers refine.

The agent gets the scene to a first version fast. Your team picks it up in the same file and takes it the rest of the way.

  • Same fileThe agent builds in the editor your team already uses. Nothing to import or rebuild.
  • Fully editableEverything it makes is a regular Spline object: select it, restyle it, animate it.
  • Back and forthHand the next pass back to the agent, or take over by hand at any point.
Publish

One scene. Web, Apple and Android.

Ship the same file to a website, an iPhone app or an Android app. Each platform gets its own native renderer, so scenes keep their interactivity and performance.

In their words

Why teams build with Spline

Start building in 3D

Connect your agent, invite your team and ship your first 3D scene today.