MCP server connecting Claude to McNeel Rhino 8 and Grasshopper via rhino3dm and an in-Rhino bridge plugin.
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"rhino3dm-mcp","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Attributed to the source that supplied each field. Treated as claims, not facts.
<div align="center"> <img src="https://raw.githubusercontent.com/EaseHee/rhino-mcp/refs/heads/main/assets/rhino-mcp.png" alt="rhino-logo"/> # rhino-mcp **Drive McNeel Rhino 8 and Grasshopper from Claude through the Model Context Protocol.**       [English](./README.md) · [한국어](./README.ko.md) </div> --- ## Overview `rhino-mcp` is a Model Context Protocol server that lets Claude (or any MCP client) drive Rhino 8 — creating geometry, manipulating layers and materials, baking Grasshopper output, exporting STEP/IGES/STL/OBJ — through plain natural-language tool calls. It runs in two modes: - **Standalone** (default): backed by [`rhino3dm`](https://github.com/mcneel/rhino3dm) for headless `.3dm` file authoring; works without Rhino installed and exposes **~242 tools** (geometry, file-I/O, transform, layer, material, analysis, RhinoScript docs, composition, document hygiene, geometry validation, GH template catalogue, freeform skin / panelisation / curvature / fields, drawing-set sheet + title block, schedule / quantity, block definition, sun-position + shadow projection, BIM metadata tagging, 19 physical material presets, BRE daylight factor + Bird DNI clear-sky model, and multi-Rhino announcement-file discovery). - **Bridge**: when the C# bridge plugin is loaded in a live Rhino 8 session, the server transparently forwards every call (booleans, lofts, sweeps, viewport image capture + zoom-to-object / zoom-to-layer, render, scripting (Python and gated Roslyn C# with timeouts and extra references), deformation, NURBS editing, SubD, paneling, freeform analysis with true Gaussian curvature, drawing-s…
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
Every source is kept verbatim. Field changes are logged as events.