How do I install the 3x-ui-setup Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/3x-ui-vpn-setup/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 / Security / network-security

3x-ui-setup

Category: Security · Sub-category: network-security · Last updated: 2026-05-21

Complete VPN server setup from scratch. Takes a fresh VPS (IP + root + password from hosting provider) through full server hardening and 3x-ui (Xray proxy panel) installation with VLESS Reality or VLESS TLS. Guides user through connecting via Hiddify client. Use when user mentions v2ray, xray, vless, 3x-ui, proxy server, vpn server, or wants to set up encrypted proxy access on a VPS. Designed for beginners — hand-holds through every step.

From the source SKILL.md

Complete setup: fresh VPS from provider → secured server → working VPN with Hiddify client.

What this skill does

3x-ui-setup is a community-contributed Claude Code skill in the network-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/3x-ui-vpn-setup/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when user mentions v2ray, xray, vless, 3x-ui, proxy server, vpn server, or wants to set up encrypted proxy access on a VPS. Designed for beginners — hand-holds through every step.

Who uses this skill

The 3x-ui-setup Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ 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/3x-ui-vpn-setup
curl -L https://claudskills.com/skills/3x-ui-vpn-setup/SKILL.md \
  -o ~/.claude/skills/3x-ui-vpn-setup/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/3x-ui-vpn-setup/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/3x-ui-vpn-setup/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\3x-ui-vpn-setup\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/XTLS/RealiTLScanner
Author: XTLS

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

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3x-ui-setup

From the source SKILL.md

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

Attribution & license

More Security skills

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