FraktalMCP
Free AI for Grasshopper
Free and open-source Grasshopper plugin: describe what you need in plain language, get Rhino geometry and GhPython scripts. Bring your own API key, runs locally inside Rhino 8.
- 100% Free & Open Source (MIT License)
- Bring Your Own Key (BYOK) — Claude, GPT, Ollama
- Runs locally inside Rhino 8
- Natural language to geometry
- No cloud dependency
Create a waffle surface structure.
How It Works
Install
Download the free .gha plugin from Food4Rhino. Copy to your Grasshopper Libraries folder. Restart Rhino 8.
Connect
Enter your own API key (Anthropic, OpenAI, or local Ollama). Your key, your cost control, your data privacy.
Create
Type what you need in natural language. FraktalMCP generates Rhino geometry or GhPython scripts directly on your canvas.
Who Uses FraktalMCP
Learn parametric design faster
Describe what you want to build and see working Grasshopper definitions. Understand parametric logic through AI-generated examples.
- Natural language input
- Step-by-step learning
- Free for educational use
AI without the enterprise price
Get AI-powered parametric generation without expensive subscriptions. Pay only for the API tokens you use with your own key.
- BYOK cost control
- No subscription required
- Full feature access
Build on top of it
MIT licensed. Fork it, extend it, contribute back. FraktalMCP is our gift to the computational design community.
- MIT License
- GitHub source code
- Community contributions welcome
What FraktalMCP Can Do
Everything you need to start using AI in Grasshopper — for free.
Text to Geometry
AvailableDescribe shapes, patterns, or structures in plain English. FraktalMCP creates Rhino geometry directly in your viewport.
GhPython Generation
AvailableGenerate ready-to-use GhPython scripts. Copy the code into a Script component and you're ready to go.
Multi-Model Support
AvailableWorks with Claude, GPT, Ollama, LM Studio, and any MCP-compatible provider. Switch models anytime.
Local Execution
AvailableEverything runs inside Rhino 8. No external Python server, no cloud dependency, no data leaving your machine.
Conversation History
AvailableMulti-turn conversations let you refine and iterate on your designs naturally.
Open Source
AvailableFull source code on GitHub. Inspect, audit, fork, extend. MIT licensed — use it however you want.
FraktalMCP vs Falcon AI Pro
| FraktalMCP (Free) | Falcon AI (Pro) | |
|---|---|---|
| Price | Free forever | Paid license |
| Source | Open Source (MIT) | Proprietary |
| Text to Geometry | ✓ | ✓ |
| GhPython Scripts | ✓ | ✓ |
| Canvas Builder | — | ✓ |
| Visual Debugging | — | ✓ |
| Plugin Awareness | Basic | 40+ plugins |
| Multi-Agent Swarm | — | ✓ |
FraktalMCP in Action
Describe what you need in plain language — FraktalMCP generates Rhino geometry and GhPython scripts instantly.
See It Work
Get FraktalMCP
100% free. Download from Food4Rhino or build from source on GitHub. Requires Rhino 8 (Windows) and an API key from Anthropic, OpenAI, or local Ollama setup.
$ Download .gha from Food4Rhino → Copy to Grasshopper Libraries folder → Restart Rhino Frequently Asked Questions
Is FraktalMCP really free?
Yes, 100% free and open source under the MIT License. You only pay for the API tokens you use with your own key (Claude, GPT, etc.). If you use Ollama with local models, it's completely free.
What's the difference between FraktalMCP and Falcon AI?
FraktalMCP is our free, open-source plugin focused on text-to-geometry and GhPython generation. Falcon AI is the premium version with advanced features: canvas builder (places GH components with correct wiring), visual debugging, plugin awareness, and multi-agent swarm architecture.
Do I need coding experience?
No. Type what you want in plain English. FraktalMCP handles the rest. Advanced users can refine the generated GhPython scripts.
Which AI models are supported?
Claude (Anthropic), GPT (OpenAI), Gemini (Google), Ollama (local), LM Studio, and any MCP-compatible provider. Bring your own API key.
Is my data safe?
Your Rhino files and geometry never leave your machine. Only the text of your prompts is sent to your chosen AI provider. Run Ollama locally for 100% offline operation.
Community Feedback
“Finally, a free AI plugin for Grasshopper that actually works. The BYOK model means I control costs.”
“Open source and MIT licensed — we forked it and added custom components for our office workflow.”
Start Using AI in Grasshopper — Free
Download FraktalMCP from Food4Rhino. Open source, no subscription, no lock-in.
See It Generate
Watch FraktalMCP turn natural language into Grasshopper geometry.