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@gizmo3d/mcp

v0.3.4

Published

MCP server for Gizmo world automation commands and resources.

Downloads

682

Vulnerabilities

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  • 0Low

Links

Git

Maintainers

gh-jakobgh-jakob

Keywords

gizmomcpmodel-context-protocol3dautomationagents

Readme

@gizmo3d/mcp

@gizmo3d/mcp exposes Gizmo automation through the Model Context Protocol. It maps engine automation commands to MCP tools and automation resources to MCP resources/resource templates.

Most users should start MCP through the CLI:

npm install -g @gizmo3d/cli
gizmo mcp --world /absolute/path/to/world.json

Use this package directly when you want to embed or customize the MCP server.

Install

npm install @gizmo3d/mcp

CLI Usage

Generic MCP config:

{
  "mcpServers": {
    "gizmo": {
      "command": "gizmo",
      "args": ["mcp", "--world", "/absolute/path/to/world.json"]
    }
  }
}

If the current workspace already has .gizmo/session.json, the args can be:

["mcp"]

gizmo start prints ready-to-use MCP configs for live sessions.

Library Usage

The package exports:

  • createAutomationMcpServer
  • resource URI helpers
  • argument parsing helpers
  • stdio server helpers
import { createAutomationMcpServer } from '@gizmo3d/mcp';

The stdio server opens a Gizmo automation session and exposes world resources and mutating tools to the connected MCP client.

Resources and Tools

Common resources include:

  • engine://session/info
  • engine://world/summary
  • engine://components/catalog
  • engine://modules/types
  • engine://modules/instances
  • engine://entities
  • engine://entities/{stableId}
  • engine://render/screenshot
  • engine://viewport/camera

Tools are generated from engine automation command definitions such as add-entity, delete-entity, set-transform, modify-component, reinitialize-world, and viewport camera commands.

Generated references:

Security

The MCP server can read and mutate world files. JavaScript/MJS world files can execute code. Only attach MCP clients you trust to workspaces and world files you trust.

Read SECURITY.md before exposing live sessions or opening unknown world files.

Local Development

From the repo root:

npm run build --workspace=mcp
npm run test --workspace=mcp

Documentation

License

Apache-2.0