> For the complete documentation index, see [llms.txt](https://docs.mozilla.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mozilla.ai/any-guardrail/api-reference/any_guardrail.md).

# AnyGuardrail

Factory class for creating guardrail instances.

## create

Create a guardrail instance.

**Parameters**

| Parameter        | Type                           | Required | Default | Description                                                        |
| ---------------- | ------------------------------ | -------- | ------- | ------------------------------------------------------------------ |
| `guardrail_name` | `GuardrailName`                | Yes      | —       | The name of the guardrail to use.                                  |
| `provider`       | `Optional[Provider[Any, Any]]` | No       | `None`  | Optional provider instance to use for model loading and inference. |

**Returns:** `Guardrail`

## metadata

Return the static taxonomy/capability metadata for a guardrail.

**Parameters**

| Parameter        | Type            | Required | Default | Description               |
| ---------------- | --------------- | -------- | ------- | ------------------------- |
| `guardrail_name` | `GuardrailName` | Yes      | —       | The guardrail to look up. |

**Returns:** `GuardrailMetadata`

## list\_guardrails

List guardrails whose metadata matches every supplied filter.

Filters combine with AND across dimensions. Set-valued dimensions (`category`, `stage`, `output_shape`) accept a single enum member or an iterable and match when the guardrail has **any** of the requested values. Scalar dimensions match by equality. A `None` filter is ignored. Runs entirely against the import-free registry — no backends are loaded.

**Parameters**

| Parameter          | Type                | Required                     | Default | Description |
| ------------------ | ------------------- | ---------------------------- | ------- | ----------- |
| `category`         | \`GuardrailCategory | Iterable\[GuardrailCategory] | None\`  | No          |
| `stage`            | \`GuardrailStage    | Iterable\[GuardrailStage]    | None\`  | No          |
| `output_shape`     | \`OutputShape       | Iterable\[OutputShape]       | None\`  | No          |
| `backend`          | \`BackendType       | None\`                       | No      | `None`      |
| `requires_api_key` | \`bool              | None\`                       | No      | `None`      |
| `multilingual`     | \`bool              | None\`                       | No      | `None`      |
| `multimodal`       | \`bool              | None\`                       | No      | `None`      |
| `vendor`           | \`str               | None\`                       | No      | `None`      |

**Returns:** `list[GuardrailName]`

## group\_by

Group guardrails by one metadata dimension.

**Parameters**

| Parameter   | Type  | Required | Default | Description                                                                                                                                               |
| ----------- | ----- | -------- | ------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `dimension` | `str` | Yes      | —       | One of `"category"`, `"stage"`, `"output_shape"`, `"backend"`, or `"vendor"`. For set-valued dimensions a guardrail appears under every value it carries. |

**Returns:** `dict[str, list[GuardrailName]]`

## get\_supported\_guardrails

List all supported guardrails.

**Returns:** `list[GuardrailName]`

## get\_supported\_model

Get the model IDs supported by a specific guardrail.

**Parameters**

| Parameter        | Type            | Required | Default |
| ---------------- | --------------- | -------- | ------- |
| `guardrail_name` | `GuardrailName` | Yes      | —       |

**Returns:** `list[str]`

## get\_all\_supported\_models

Get all model IDs supported by all guardrails.

Guardrails whose optional extra isn't installed are skipped rather than raising, since this is a discovery API and the natural use is "what can I run here?" on a partial install. Every guardrail module that gates an optional SDK re-raises the failed import as `raise ImportError(msg) from e`, so only an `ImportError` with a chained cause is treated as a missing-extra signal; an uncaused `ImportError` (e.g. an unresolvable module path or class name) is a real bug and propagates.

**Returns:** `dict[str, list[str]]`


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