Spline MCP Server

What it does

Spline MCP Server connects Claude to Spline.design workflows by providing code-generation tools for the @splinetool/runtime library. Rather than calling a non-existent Spline REST API, this server gives AI assistants the ability to produce working JavaScript and React code that integrates Spline 3D scenes into web projects.

Note: This project is archived. Spline does not expose a public REST API for scene manipulation, so the majority of the ~130 tool stubs that target api.spline.design are non-functional. The 10 code-generation tools, however, do work and produce valid @splinetool/runtime snippets.

Tools

• generate_vanilla_js — Produce plain JavaScript that loads a Spline scene and attaches event listeners
• generate_react_component — Create a React component wrapping a Spline scene with props for interactivity
• generate_nextjs_integration — Output a Next.js-compatible component with dynamic import and SSR guard
• generate_animation_code — Write animation logic using position, rotation, scale object properties
• generate_variable_state — Scaffold state management with setVariable / getVariable calls
• generate_event_handler — Build emitEvent and addEventListener handler code
• generate_object_finder — Produce findObjectByName / findObjectById lookup utilities
• generate_camera_control — Write setZoom, play, and stop control snippets
• generate_hover_interaction — Create hover-triggered transformations on Spline objects
• generate_click_interaction — Scaffold click-based scene interactions

Installation

Add to your Claude Desktop claude_desktop_config.json:

{
  "mcpServers": {
    "spline": {
      "command": "npx",
      "args": ["-y", "spline-mcp-server"]
    }
  }
}

Supported hosts

Claude Desktop is the only client confirmed in the README.