Three.js DevTools MCP

Inspect and edit Three.js scenes, materials, shaders, lights in real time from any AI agent. It runs locally over stdio via the published package.

People connecting developer tools tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-04-07 · ★ 85 · #82 OF 139 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Three.js DevTools MCP

Claude Code

claude mcp add dmitriygolub-threejs-devtools-mcp -- npx -y threejs-devtools-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "dmitriygolub-threejs-devtools-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "threejs-devtools-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package threejs-devtools-mcp - unscoped; check the name against the project README before installing

registry namespace io.github.DmitriyGolub is GitHub-verified and matches the repo owner

03 · What Three.js DevTools MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.4.1 · 2026-03-23

Body · Fix Vite 7 HMR infinite loop - proxy now detects vite-hmr WebSocket subprotocol and forwards it to the dev server instead of treating it as a bridge connection (#2) · Shadow DOM canvas discovery - Three.js…

v0.4.0 · 2026-03-22

What's New · Annotated Screenshots · Take a screenshot with smart object labels automatically placed in the scene. Groups duplicate instances (tree ×42), spreads clustered labels, skips bones and origin containers.…

0.3.0 · 2026-03-17

### New tools (5) · - console_capture - intercept browser console log/warn/error with dedup · - texture_preview - render any texture as PNG image · - perf_monitor - FPS recording with p50/p95/p99 percentiles…

04 · Who maintains Three.js DevTools MCP

Three.js DevTools MCP is maintained by dmitriygolub. It's the only MCP server we track from this author; the repo dates to Mar 2026.

05 · Facts

repository: github.com/dmitriygolub/threejs-devtools-mcp
website: https://github.com/DmitriyGolub/threejs-devtools-mcp
category: developer tools - ranked #82 of 139 actively-maintained developer tools servers as of 2026-08-25.
registry: io.github.DmitriyGolub/threejs-devtools (active, first published 2026-03-16)
packages: npm:threejs-devtools-mcp

06 · Three.js DevTools MCP FAQ

What is Three.js DevTools MCP?

Inspect and edit Three.js scenes, materials, shaders, lights in real time from any AI agent. It runs locally over stdio via the published package.

Is Three.js DevTools MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-04-07. We re-verify nightly.

How do I install Three.js DevTools MCP?

Run `npx -y threejs-devtools-mcp`. You can also paste the ready-made client config above.

Does Three.js DevTools MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Three.js DevTools MCP

Alternatives to Three.js DevTools MCP

Maintained developer tools servers if Three.js DevTools MCP isn't the fit.

Pairs well with

Servers that cover what Three.js DevTools MCP doesn't - only shown when the pairing reason fits the companion.

More developer tools MCP servers · Docmancer · Gearcoleco MCP Server · Geargrafx MCP Server · Raxol · Skylos

More TypeScript MCP servers · DeepSeek MCP Server · Openapi · Uxspot MCP · Conarium · Dollhouse MCP · see all