@spec oauth_env_var() :: String.t()

Returns the environment variable name for Claude OAuth tokens.

Examples

iex> ClaudeCodeSDK.Auth.Providers.Anthropic.oauth_env_var()
"CLAUDE_CODE_OAUTH_TOKEN"

@spec setup_token() :: {:ok, String.t(), DateTime.t()} | {:error, term()}

Executes claude setup-token and extracts the OAuth token.

This requires:

• Claude Code CLI installed (v2.0.10+)
• Active Claude subscription
• Interactive terminal for OAuth flow

Process

1. Opens browser to claude.ai/oauth/authorize
2. User signs in with Claude account
3. CLI displays OAuth token (sk-ant-oat01-...)
4. Token is valid for 1 year

Token Format

Returns OAuth token: sk-ant-oat01-... Should be set as: export CLAUDE_CODE_OAUTH_TOKEN=<token>