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Install

Trust the Upsun tap, then install:
  brew tap --force-auto-update upsun/tap
  brew trust upsun/tap
  brew install upsun/tap/upsun-cli
To verify the installation, run:
upsun --version

Authenticate

Run the following command to authenticate and to manage your projects:
upsun
This command opens a browser tab for you to log in. It also creates certificates on your computer for SSH. After logging in, you see a list of your projects and tips for getting started. If you experience authentication issues or want to force a login, run upsun login. To install and authenticate the CLI in a CI system or app container using a build hook, see Authenticate using an API token.

Update the CLI

To update the CLI, run the appropriate command for your platform:
  brew upgrade upsun-cli

Upgrade from the legacy CLI

Follow the installation instructions above. Once installed, the CLI guides you through removing the legacy CLI.
Last modified on June 11, 2026