Web3auth

Q: What is a Claude Code skill and how does the Web3auth skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Web3auth is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: frontend · Last updated: 2026-06-13

Integrates MetaMask Embedded Wallets (Web3Auth) for non-custodial wallets via social login or custom JWT (Firebase, Auth0, Cognito). Use when integrating @web3auth/modal (React, Vue, Next.js, Vite, Angular), @web3auth/react-native-sdk (Expo/bare RN—Custom Dev Client, not Expo Go), web3auth_flutter, native Android/iOS, Unity, or @web3auth/node-sdk. Invoke for Sapphire devnet/mainnet, dashboard client ID, grouped connections (same address across Google + email passwordless), implicit vs JWT auth flows, useWeb3AuthConnect, id_token server-side verification, or SDK migration (web v11, RN v9, OPENLOGIN_NETWORK/LOGIN_PROVIDER legacy). Also use when users get different wallet addresses per login method or need RN Metro setup/withWeb3Auth migration. Do NOT use for MetaMask browser extension only, RainbowKit/ConnectKit without embedded wallets, or unrelated smart-contract work.

From the source SKILL.md

Before writing code, use MCP tools for live docs and examples. Do not guess package names, API signatures, or config.

What this skill does

Web3auth is a community-contributed Claude Code skill in the frontend sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/web3auth/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when integrating @web3auth/modal (React, Vue, Next.js, Vite, Angular), @web3auth/react-native-sdk (Expo/bare RN—Custom Dev Client, not Expo Go), web3auth_flutter, native Android/iOS, Unity, or @web3auth/node-sdk.

Who uses this skill

The Web3auth Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 120,000+ 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/web3auth
curl -L https://claudskills.com/skills/web3auth/SKILL.md \
  -o ~/.claude/skills/web3auth/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/web3auth/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/web3auth/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\web3auth\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

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

Frequently asked questions

How do I install the Web3auth Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/web3auth/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Web3auth skill do?

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.

When should I use the Web3auth skill?

Use Web3auth when your Claude Code task falls under the Engineering category — specifically in the frontend area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Web3auth" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Web3auth skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Web3auth is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/Web3Auth/skill/blob/14101040af363dd0ae220fd64b2a69b0d8f46121/skills/web3auth/SKILL.md
Author: Web3Auth
Website: https://mcp.web3auth.io

Cite this skill

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

APA

Web3Auth. (2026). Web3auth [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/web3auth/

BibTeX

@misc{web3auth-2026,
  author    = {Web3Auth},
  title     = {Web3auth [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/web3auth/}
}

Embed this skill

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Badge

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