---
layout: 5x-api
title: Express 5.x - API Reference
description: Access the API reference for Express.js 5.x, detailing all modules, methods, and properties for building web applications with this latest version.
menu: api
lang: en
redirect_from: "/5x/api.html"
---
<div id="api-doc" markdown="1">

  <h1>5.x API</h1>

  {% include admonitions/note.html content="Express 5.0 requires Node.js 18 or higher." %}

  {% include api/{{ page.lang }}/5x/express.md %}
  {% include api/{{ page.lang }}/5x/app.md %}
  {% include api/{{ page.lang }}/5x/req.md %}
  {% include api/{{ page.lang }}/5x/res.md %}
  {% include api/{{ page.lang }}/5x/router.md %}

</div>
