How do I install the Auth.js (NextAuth v5) Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/authjs/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

ClaudSkills / General / general-misc

Auth.js (NextAuth v5)

Category: General · Sub-category: general-misc · Last updated: 2026-05-21

Guía oficial de Auth.js v5 para autenticación en aplicaciones modernas con soporte para Prisma Adapter

From the source SKILL.md

Auth.js (anteriormente NextAuth.js) es la solución estándar para autenticación en aplicaciones modernas, con un enfoque renovado en el App Router de Next.js.

What this skill does

Auth.js (NextAuth v5) is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/authjs/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Auth.js (NextAuth v5) Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 70,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/authjs
curl -L https://claudskills.com/skills/authjs/SKILL.md \
  -o ~/.claude/skills/authjs/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/authjs/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/authjs/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\authjs\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

Source: https://github.com/donsheko/nexusv3/blob/a42806aadecdf101e5519d8d6986e21a80fbd603/assets/skills/authjs/SKILL.md
Author: donsheko

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

donsheko. (2026). Auth.js (NextAuth v5) [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/authjs/

BibTeX

@misc{authjs-2026,
  author    = {donsheko},
  title     = {Auth.js (NextAuth v5) [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/authjs/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/authjs.svg)](https://claudskills.com/skills/authjs/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

More General skills

Browse all General skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all General skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel