Authenticating Claude Code

Use claude auth login or /login to get authenticated.

• claude auth login opens a browser to sign in (or prints an OAuth URL if the browser doesn't open).
• Select login method:
  1. Claude account with subscription — Pro, Max, Team, or Enterprise
  2. Anthropic Console account — API usage billing
  3. 3rd-party platform — Amazon Bedrock, Microsoft Foundry, etc.

Related: Installing Claude Code, Auth Error, Via API Key