Text To Model

What mikan-atomoki/text-to-model MCP server does

The mikan-atomoki/text-to-model MCP server lets Claude control Autodesk Fusion 360 through plain-text modeling instructions. It can create sketches and construction geometry, build solid features, modify bodies, inspect designs, and export models. The workflow is intended for parametric CAD: an agent can create a sketch, apply a feature, make changes, and then export the result.

The server also includes generators for JIS-standard mechanical parts. Supported examples include bolts, nuts, screws, washers, threaded holes, counterbores, countersinks, keyways, bearing holes, and O-ring grooves. The README describes these parts as using JIS dimensions; ISO equivalents are planned rather than listed as currently supported.

How it works

Fusion 360 hosts the add-in and its HTTP/SSE server. Claude connects to the local endpoint at http://127.0.0.1:13405/sse using MCP. A bridge receives tool calls and synchronizes their execution with Fusion 360’s main thread through a CustomEvent mechanism, where the Fusion 360 API performs the requested operation.

This architecture keeps the modeling operations inside the running Fusion 360 application. The mikan-atomoki/text-to-model MCP server therefore depends on Fusion 360 being installed and the TextToModel add-in being active when Claude sends requests.

Setup and configuration

Use the following setup sequence:

1. Install Autodesk Fusion 360 and Node.js.
2. Clone the repository into Fusion 360’s add-in directory. On Windows, the documented location is under %APPDATA%\Autodesk\Autodesk Fusion 360\API\AddIns\TextToModel; on macOS, it is under the user Library’s Fusion 360 API AddIns directory.
3. In Fusion 360, open UTILITIES → ADD-INS → Scripts and Add-Ins, then run TextToModel.
4. Configure an MCP client to connect to the local SSE endpoint.

For Claude Desktop, the README uses npx -y mcp-remote http://127.0.0.1:13405/sse in the MCP configuration. Claude Code can be registered with its SSE transport and the same local URL. The mikan-atomoki/text-to-model MCP server does not document an API key, OAuth flow, or other credential requirement.

Tools and capabilities

The 64 tools are grouped across several CAD functions:

• Sketches: circles, rectangles, lines, arcs, splines, polygons, and sketch creation
• Features: extrusions, revolves, sweeps, and lofts
• Modifications: fillets, chamfers, shells, mirrors, variable fillets, and drafts
• Patterns and combining: circular and rectangular patterns plus boolean operations
• Construction and inspection: planes, axes, edge and face listings, sketches, and bounding boxes
• Surface and splitting operations, body transforms, SVG/DXF import, and constraints
• Appearance and utility actions, including body colors, renaming, parameters, undo, design information, and body/component listings
• Export to STEP and STL, plus execution of Fusion-related code

Limitations and notes

The documented client support is Claude Desktop and Claude Code. The server is designed around Autodesk Fusion 360, so it is not a general-purpose standalone CAD engine. Its local endpoint uses HTTP/SSE on port 13405 according to the setup example. The README lists JIS standard parts and dimensions, while ISO equivalents are identified as planned. No hosted endpoint, authentication scheme, or Windows/macOS support beyond the listed add-in paths is documented.