# Nuxt API Reference

> Explore all Nuxt Internals: Components, Composables, Utils, Commands and more.

<card-group>
<card icon="i-lucide-box" title="Components" to="/docs/4.x/api/components/client-only">

Explore Nuxt built-in components for pages, layouts, head, and more.

</card>

<card icon="i-lucide-arrow-left-right" title="Composables" to="/docs/4.x/api/composables/use-app-config">

Discover Nuxt composable functions for data-fetching, head management and more.

</card>

<card icon="i-lucide-square-function" title="Utils" to="/docs/4.x/api/utils/dollarfetch">

Learn about Nuxt utility functions for navigation, error handling and more.

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<card icon="i-lucide-square-terminal" title="Commands" to="/docs/4.x/api/commands/add">

List of Nuxt CLI commands to init, analyze, build, and preview your application.

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<card icon="i-lucide-package" title="Nuxt Kit" to="/docs/4.x/api/kit/modules">

Understand Nuxt Kit utilities to create modules and control Nuxt.

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<card icon="i-lucide-brain" title="Advanced" to="/docs/4.x/api/advanced/hooks">

Go deep in Nuxt internals with Nuxt lifecycle hooks.

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<card icon="i-lucide-cog" title="Nuxt Configuration" to="/docs/4.x/api/nuxt-config">

Explore all Nuxt configuration options to customize your application.

</card>
</card-group>