A plugin for [Sweet Home 3D](https://www.sweethome3d.com/) that embeds an MCP (Model Context Protocol) server directly inside the application. Lets
If you already use Sweethome3d, the sweethome3d mcp server is the piece that lets your assistant work with it directly. A plugin for Sweet Home 3D that embeds an MCP (Model Context Protocol) server directly inside the application. Lets Claude and other AI assistants control Sweet Home 3D over HTTP — create walls, place.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
Scene — The Scene tool exposed by this serverWalls — The Walls tool exposed by this serverRooms — The Rooms tool exposed by this serverFurniture — The Furniture tool exposed by this serverAnnotations — The Annotations tool exposed by this serverCamera — The Camera tool exposed by this serverBatch — The Batch tool exposed by this server| Requirement | Version | |-------------|---------| | Sweet Home 3D | 6.0 or newer | | Java (bundled with SH3D or system) | 11 or newer | > Note: Sweet Home 3D ships with a bundled JRE. Make sure it is Java 11+. Very old SH3D builds (32-bit Windows installer with JRE 1.8) will silently fail to load the plugin due to UnsupportedClassVersionError.
Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.
This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Sweethome3d's toolset — Scene, Walls, Rooms and 4 more — is a fair guide to whether it matches your workflow. It is maintained by grimashevich; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Sweethome3d's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| Scene | The Scene tool exposed by this server. |
| Walls | The Walls tool exposed by this server. |
| Rooms | The Rooms tool exposed by this server. |
| Furniture | The Furniture tool exposed by this server. |
| Annotations | The Annotations tool exposed by this server. |
| Camera | The Camera tool exposed by this server. |
| Batch | The Batch tool exposed by this server. |
{
"mcpServers": {
"sweethome3d": {
"type": "http",
"url": "http://localhost:9877/mcp"
}
}
}Configuration as documented by the project. Restart the client after saving.
| Requirement | Version | |-------------|---------| | Sweet Home 3D | 6.0 or newer | | Java (bundled with SH3D or system) | 11 or newer | > Note: Sweet Home 3D ships with a bundled JRE. Make sure it is Java 11+. Very old SH3D builds (32-bit Windows installer with JRE 1.8) will silently fail to load the plugin due to UnsupportedClassVersionError.
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