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

# Plugins | AI Gateway

> Plugins are request-scoped transforms that mutate the text exchanged with a model in the AI Gateway, such as PII redaction.

**Plugins** are request-scoped transforms applied to the text exchanged with a model in the **AI Gateway**. A plugin mutates the request before the provider sees it and can restore the response on the way back. This sets plugins apart from [Guardrails](/docs/ai-gateway/guardrails), which only observe and block.

Attach plugins per request through the `plugins` array. Each plugin is identified by an `id` discriminator.

<CardGroup cols={2}>
  <Card title="PII Redaction" icon="user-shield" href="/docs/ai-gateway/plugins/pii-redaction">
    Replace personally identifiable information with placeholders before the
    provider sees it, then restore the original values in the response.
  </Card>
</CardGroup>

## Supported endpoints

The `plugins` array is accepted on the following **AI Gateway** routes:

* `POST /v3/router/responses`
* `POST /v3/router/chat/completions`
* `POST /v3/router/completions`
* `POST /v3/router/embeddings`
* `POST /v3/router/rerank`
* `POST /v3/router/images/generations`