Side A

CLAUDE CODE + CODEX

Side A. Your coding accounts, a track apart.

Side A’s silver portable account player
Go on. Press a button.

Preview account: Personal, Claude.

Your coding accounts. A track apart.

Checking release…

macOS 14+ · Apple Silicon & Intel

THREE SMALL STEPS

Put it in play.

  1. 01

    Make it at home.

    Open the download. Drag Side A to Applications.

  2. 02

    Add an account.

    Open the player’s lid. Choose Claude or Codex and finish its official sign-in.

  3. 03

    Press play.

    Pick your project and keep going.

What needs to be installed?

Python 3.9+ and either Claude Code or Codex CLI. Side A uses your own subscription accounts.

Need Python? Use the official macOS installer.

For sessions started in Side A. Codex and Auto flip are preview features; real multi-account handoffs are still being validated.

YOURS STAYS YOURS

No extra account.

Side A has no analytics or credential-collection service. Your agent owns sign-in; your profiles and managed history stay on your Mac.

Your coding agent sends requests to its provider under that provider’s policies. This site loads files from its host and checks GitHub for the latest public release. No cookies or tracking scripts.