Hermes portable plugin for the official Blender Lab MCP server and workflow skill
A portable Hermes plugin containing MCP launch configuration and a workflow skill for the official Blender Lab MCP server.
Choose the destination profile with the global hermes -p option. Catalog installation by the short name blender becomes available only after its catalog entry is merged and published.
- Blender 5.1 or newer on the same machine as the Hermes backend. - The official Blender Lab MCP add-on installed and enabled in Blender, with Online access enabled and its bridge started on loopback port 9876. - Git and uv available to the backend. Network access is required for the initial MCP environment setup.
See setup and troubleshooting. Installing this package does not install Blender, change Blender preferences, install its add-on, or open a scene.
Prepare the server before first activation
The first upstream download/build took several minutes in our Windows checks. Warm its isolated uv environment before asking Hermes to connect, so a normal MCP connection timeout does not interrupt the download:
Restart Hermes, or use the explicit plugin/MCP reload commands supported by your release. The package's skill is available through skillslist and its qualified name via skillview. Verify a real getobjectssummary response before treating Blender as ready.
Hermes launches the official server over stdio with the same pinned source as the preparation command. The MCP server connects to the Blender add-on over 127.0.0.1:9876. No native Hermes Python hooks, tool overrides, desktop JavaScript or self-updater are included.
From the project README.
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