Download
The right app for each computer.
You need a Kvantia account and an active trial or subscription to use the app. Set up access first, then choose the installer for your computer.
See what’s changed →Start here
Choose a plan and activate your account.
Select Solo or Office, create your Kvantia account and confirm your email. Complete checkout to start your seven free days. Then install the app and sign in.
Checkout requires a payment card. Nothing is charged during the trial; you can turn renewal off in your account before it ends.
Before you start
Before setting up the server
- An AI provider account or API key you already pay for — Claude or GPT. Harness uses yours, at their price.
- An active trial or subscription with a workspace, and the Kvantia account of the person who will be its digital member.
- The files, templates or systems the routine touches, on that same computer.
The machine
Recommended server computer
- ProcessorModern desktop CPU, 8+ cores
- Memory16 GB RAM
- Storage256 GB SSD, more for your own files
- SystemWindows x64 or macOS
Harness does the work on this machine, so the routine keeps running whether or not anyone is at the desk. A weaker computer still runs it — long routines just take longer.
Setup
Set up the server once. Then invite your team.
- 1
Install and activate
Run the installer and sign in with the Kvantia account that holds this server. Registration ties the workspace to this one computer; nothing is typed in by hand.
- 2
Connect your AI provider
Point Harness at your own Claude or GPT account or API key. You pay that provider directly, at their price — we add no markup.
- 3
Grant the first capabilities
Start with the built-in workspace tools. Add access to a folder, mailbox or business system only when a task needs it.
- 4
Run one routine and approve it
Describe the routine in plain language. Harness restates the scope, does the work, and pauses anything sensitive for your approval before it happens.
Everything you need to run it is written down
The full documentation, a step-by-step guide for your first routine and short video walkthroughs are all on the site — no onboarding call required.