> ## Documentation Index
> Fetch the complete documentation index at: https://docs.markifact.com/llms.txt
> Use this file to discover all available pages before exploring further.

# List Built In Variables

> Lists the built-in variables currently enabled in a Google Tag Manager workspace

Lists the built-in variables currently enabled in a Google Tag Manager workspace. Built-in variables (e.g. Page URL, Click Classes) must be enabled before tags or triggers can reference them.

| | |
| - | - |
| **App** | Google Tag Manager |
| **Operation ID** | `gtm_list_built_in_variables` |
| **Type** | Action |
| **Connection** | `gtm` (required) |
| **Credits per run** | 1 |
| **Agent / MCP tool** | Yes |

## Inputs

| Field | Type | Required | Default | Description |
| - | - | - | - | - |
| `account` | DynamicAccount | Yes | - | Select the Google Tag Manager account. |
| `container` | DynamicAccount | Yes | - | Select the container. |
| `workspace` | DynamicAccount | Yes | - | Select the workspace. |
| `limit` | integer | No | `200` | Maximum number of enabled built-in variables to return. Default: 200. |

## Output

**Type**: `List[Dict]`

Returns the raw list of enabled built-in variables as provided by the Tag Manager API.


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