> ## Documentation Index
> Fetch the complete documentation index at: https://arkor-92aeef0e-eng-716.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign in

> arkor login, logout, whoami.

# Sign in to Arkor Cloud

You can use Arkor anonymously without ever signing in: `arkor dev` bootstraps an anonymous identity for you on first launch. To tie work to your Arkor Cloud account instead, use `arkor login`.

## Sign in

<CodeGroup>
  ```bash pnpm theme={null}
  pnpm arkor login
  ```

  ```bash npm theme={null}
  npm arkor login
  ```

  ```bash yarn theme={null}
  yarn arkor login
  ```

  ```bash yarn-berry theme={null}
  yarn run arkor login
  ```

  ```bash bun theme={null}
  bun arkor login
  ```
</CodeGroup>

The CLI prompts you to pick **OAuth (browser)** or **Anonymous**. Pick OAuth to sign in to your Arkor Cloud account; the CLI opens a browser, you authorize, and credentials land in `~/.arkor/credentials.json`.

To skip the picker:

<CodeGroup>
  ```bash pnpm theme={null}
  pnpm arkor login --oauth
  ```

  ```bash npm theme={null}
  npm arkor login --oauth
  ```

  ```bash yarn theme={null}
  yarn arkor login --oauth
  ```

  ```bash yarn-berry theme={null}
  yarn run arkor login --oauth
  ```

  ```bash bun theme={null}
  bun arkor login --oauth
  ```
</CodeGroup>

In CI, use `--anonymous` instead; OAuth needs a browser.

## Check who you are

<CodeGroup>
  ```bash pnpm theme={null}
  pnpm arkor whoami
  ```

  ```bash npm theme={null}
  npm arkor whoami
  ```

  ```bash yarn theme={null}
  yarn arkor whoami
  ```

  ```bash yarn-berry theme={null}
  yarn run arkor whoami
  ```

  ```bash bun theme={null}
  bun arkor whoami
  ```
</CodeGroup>

Prints the current identity and the orgs you can reach.

## Sign out

`arkor logout` deletes `~/.arkor/credentials.json`. The next `arkor dev` will bootstrap a fresh anonymous identity, or you can `arkor login --oauth` again.

## Reference

For the full picker / flag matrix, the anonymous-vs-OAuth tradeoffs, token expiry behavior, and every error message, see the [auth reference](/cli/auth).