MCP for the Workspaces stack is Rabun. rabun serve speaks stdio. rabun serve --transport http binds 127.0.0.1:8080 with POST /mcp and GET /health.

{
  "mcpServers": {
    "rabun": {
      "command": "rabun",
      "args": ["serve"]
    }
  }
}

Tools include ping, list_apps, run_app, stop_app, app_status, etl_publications, and etl_status.

Burton is primarily an MCP client today (the Images plugin calls a generate tool). “MCP out of the box” means the installed stack, not a Burton /api/mcp route.