Gemini CLI

R3 for Gemini CLI

org.r3js/r3

Build 3D web apps: physics, audio, music, Blender import. Live edits, undo, versions, publishing.

client:Gemini CLI transport:streamable-http tools:80

Install R3 in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "r3": {
      "httpUrl": "https://mcp.r3js.org/mcp"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs

What Gemini CLI can do once it is connected

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R3 in other clients