#ログイン articles | Clauder Navi

Claude AI サインイン方法｜Google・メール・SSO の使い分け

Claude AI(claude.ai)へのサインイン方法を、Google アカウント・メールのマジックリンク・企業向け SSO の 3 経路で整理。正しいログイン URL、同一端末と別端末で挙動が変わる 2 つのログインオプション、Console との違いまで Anthropic 公式ヘルプに沿って解説します。

Claude

Can't Log In to Claude AI | Steps to Fix Email Authentication and SSO Issues

Troubleshoot Claude.ai login failures by cause: missing magic link or verification code emails, Google/Apple SSO errors, mobile/desktop app-only failures, server outages, and confusion between Console and Claude.ai — all organized following Anthropic's official Help Center documentation.

Claude

How to Sign Up for Claude with Your Google Account in 5 Minutes — Plus Login Troubleshooting

Step-by-step instructions for signing up for Claude with a Google account across three paths: Web, iOS, and Android. Covers the 2-click registration flow, best practices for separating personal Gmail from work Workspace accounts, and the four most common login failure causes (already registered with a different account / OAuth blocked by admin / age restriction / unsupported region).

Claude

Log in to Claude with Apple ID | Steps for iPhone App and Web

A guide to logging in to Claude with Apple ID, covering both the web version at claude.ai and the iPhone app, based on official Anthropic information. Explains whether Sign in with Apple is supported, the authentication steps in the iOS app, and what to check when login fails.