Create a new GameObject in opened Prefab or in a Scene. If needed - provide proper 'position', 'rotation' and 'scale' to reduce amount of operations.
unity-mcp-cli run-tool gameobject-create --input '{
"name": "string_value",
"parentGameObjectRef": "string_value",
"position": "string_value",
"rotation": "string_value",
"scale": "string_value",
"isLocalSpace": false,
"primitiveType": "string_value"
}'
For complex input (multi-line strings, code), save the JSON to a file and use:
unity-mcp-cli run-tool gameobject-create --input-file args.jsonOr pipe via stdin (recommended):
unity-mcp-cli run-tool gameobject-create --input-file - <<'EOF' {"param": "value"} EOF
If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead.
Read the /unity-initial-setup skill for detailed installation instructions.
| Name | Type | Required | Description |
|---|---|---|---|
name | string | Yes | Name of the new GameObject. |
parentGameObjectRef | any | No | Parent GameObject reference. If not provided, the GameObject will be created at the root of the scene or prefab. |
position | any | No | Transform position of the GameObject. |
rotation | any | No | Transform rotation of the GameObject. Euler angles in degrees. |
scale | any | No | Transform scale of the GameObject. |
isLocalSpace | boolean | No | World or Local space of transform. |
primitiveType | any | No |
{
"type": "object",
"properties": {
"name": {
"type": "string"
},
"parentGameObjectRef": {
"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Runtime.Data.GameObjectRef"
},
"position": {
"$ref": "#/$defs/UnityEngine.Vector3"
},
"rotation": {
"$ref": "#/$defs/UnityEngine.Vector3"
},
"scale": {
"$ref": "#/$defs/UnityEngine.Vector3"
},
"isLocalSpace": {
"type": "boolean"
},
"primitiveType": {
"$ref": "#/$defs/UnityEngine.PrimitiveType"
}
},
"$defs": {
"System.Type": {
"type": "string"
},
"com.IvanMurzak.Unity.MCP.Runtime.Data.GameObjectRef": {
"type": "object",
"properties": {
"instanceID": {
"type": "integer",
"description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
},
"path": {
"type": "string",
"description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
},
"name": {
"type": "string",
"description": "Name of a GameObject in hierarchy. Priority: 3."
},
"assetType": {
"$ref": "#/$defs/System.Type",
"description": "Type of the asset."
},
"assetPath": {
"type": "string",
"description": "Path to the asset within the project. Starts with 'Assets/'"
},
"assetGuid": {
"type": "string",
"description": "Unique identifier for the asset."
}
},
"required": [
"instanceID"
],
"description": "Find GameObject in opened Prefab or in the active Scene."
},
"UnityEngine.Vector3": {
"type": "object",
"properties": {
"x": {
"type": "number"
},
"y": {
"type": "number"
},
"z": {
"type": "number"
}
},
"required": [
"x",
"y",
"z"
],
"additionalProperties": false
},
"UnityEngine.PrimitiveType": {
"type": "string",
"enum": [
"Sphere",
"Capsule",
"Cylinder",
"Cube",
"Plane",
"Quad"
]
}
},
"required": [
"name"
]
}
{
"type": "object",
"properties": {
"result": {
"$ref": "#/$defs/com.IvanMurzak.Unity.MCP.Runtime.Data.GameObjectRef",
"description": "Find GameObject in opened Prefab or in the active Scene."
}
},
"$defs": {
"System.Type": {
"type": "string"
},
"com.IvanMurzak.Unity.MCP.Runtime.Data.GameObjectRef": {
"type": "object",
"properties": {
"instanceID": {
"type": "integer",
"description": "instanceID of the UnityEngine.Object. If it is '0' and 'path', 'name', 'assetPath' and 'assetGuid' is not provided, empty or null, then it will be used as 'null'. Priority: 1 (Recommended)"
},
"path": {
"type": "string",
"description": "Path of a GameObject in the hierarchy Sample 'character/hand/finger/particle'. Priority: 2."
},
"name": {
"type": "string",
"description": "Name of a GameObject in hierarchy. Priority: 3."
},
"assetType": {
"$ref": "#/$defs/System.Type",
"description": "Type of the asset."
},
"assetPath": {
"type": "string",
"description": "Path to the asset within the project. Starts with 'Assets/'"
},
"assetGuid": {
"type": "string",
"description": "Unique identifier for the asset."
}
},
"required": [
"instanceID"
],
"description": "Find GameObject in opened Prefab or in the active Scene."
}
},
"required": [
"result"
]
}