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

# Use Built-In Plugins

> Start with Redop's built-in logger and auth plugins before building your own.

Redop ships with a small set of built-in plugins so you can add common behavior quickly.

## Current built-in plugin surface

```ts theme={null}
import { apiKey, logger, Redop } from "@redopjs/redop";

new Redop({ serverInfo: { name: "plugin-demo" } })
  .use(logger({ level: "info" }))
  .use(apiKey({ key: process.env.API_SECRET }));
```

## Authentication lives under auth

Use the plugin auth pages for:

* [API key authentication](/guides/authentication/api-key)
* [JWT authentication](/guides/authentication/jwt)
* [OAuth authentication](/guides/authentication/oauth)

## Logger has its own guide

Use the logger page when you want structured lifecycle logs:

* [Logger plugin](/guides/logger-plugin)

## Rule of thumb

Reach for a built-in plugin first when the behavior is shared across many tools. Use a custom plugin when the behavior is specific to your product.

## Next

* [Built-in plugins reference](/reference/built-in-plugins)
* [Logger plugin](/guides/logger-plugin)
* [Evlog plugin](/plugins/evlog)
* [Sentry for Bun](/plugins/sentry)
* [API key authentication](/guides/authentication/api-key)
* [Build a plugin or middleware](/guides/build-plugin-or-middleware)