How to install Astro for free

Before you start: A Mac with Apple silicon, or a 64-bit Windows PC — both download and run directly, no toolchain to install first. Windows is unsigned, so SmartScreen needs one click through (More info, then Run anyway). Astro's built-in agent defaults to publik API with no key to paste — linking your publik account gives $0.05 of free use once, then the app pays publik's published price per use, and your own key still works.

An answer engine that can actually use your browser — no key to paste. Pick the setup you have and follow the steps. Every command is written out — you do not need to know what any of it means.

Choose your setup

Would you rather not do this by hand?

Iris is our free desktop app. Hand it the install and it runs the commands for you in its own terminal, fixes what it can when something fails, and stops to ask before anything it should not do on its own.

Get Astro with Iris