A coding agent announced by Anthropic on February 25, 2025. It runs in a terminal environment.

docs.anthropic.com/en/docs/agents-and-tools/claude-code/overview

Using multiple accounts

Use claude setup-token to obtain a token for each account. Apply the personal account’s CLAUDE_CODE_OAUTH_TOKEN system-wide, put the work account’s CLAUDE_CODE_OAUTH_TOKEN in the .envrc of the folder containing work projects, and have each project’s .envrc inherit it with source_up. This lets you use your personal account everywhere else and your work account in work projects.

However, when I did this, commands such as /usage stopped working, and I do not yet know how to fix that.

—ak, 2026-02-23