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modly-image-to-3d — Claude Code skill: 3D from photos, local

This skill walks your agent through installing Modly, a desktop app that turns a photo into a 3D mesh on your own GPU — no cloud, no API keys.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add reason-machines/trending-skills --skill modly-image-to-3d -a claude-code
Open on GitHub

What modly-image-to-3d does

Modly is an open-source desktop app for Windows and Linux. Feed it an image and it produces a 3D mesh, running the model entirely on your GPU. The skill covers setup, the dev build and the extension system.

Under the hood it's an Electron and TypeScript shell over a local Python FastAPI backend. Generation lives in each extension's generator.py, while manifest.json describes the model variants. Extensions install straight from a GitHub repo. For a quick start there's launcher.bat on Windows and launcher.sh on Linux; the dev path needs npm install, a Python virtual environment, pip install -r requirements.txt and then npm run dev.

Your GPU is the real gate here. Each variant in the manifest carries a vram_gb figure, and a card below it won't finish the job. Check that number before pulling weights that run several gigabytes — otherwise you wait through a download for nothing.

What it helps with

  • turn a single photo into a 3D mesh
  • run 3D generation on your own GPU without a cloud service
  • install a Modly extension from a GitHub repo
  • pick a model variant that fits your VRAM
  • start the local FastAPI backend for generation

Example prompts for the agent

  • install the modly-image-to-3d skill and show me how to launch Modly
  • how do I install a Modly extension from GitHub and download a model variant
  • check whether my VRAM is enough for the variant in manifest.json

How to install modly-image-to-3d

1Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill modly-image-to-3d -a claude-code

2Manually: put the files in place

~/.claude/skills/modly-image-to-3d/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/modly-image-to-3d/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about modly-image-to-3d

How do I install modly-image-to-3d in Claude?

Run npx skills add reason-machines/trending-skills --skill modly-image-to-3d -a claude-code. The skill file then lands at ~/.claude/skills/modly-image-to-3d/SKILL.md.

What does modly-image-to-3d do?

It guides your agent through installing and configuring Modly, the desktop app that generates a 3D model from an image on a local GPU. It also covers adding model extensions and starting the backend.

Do I need API keys or an internet connection to generate?

No API keys — the model runs on your graphics card. You only need the network to download model weights and the extension itself from GitHub.

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