Kay is in private beta and runs on macOS today. Windows and Linux are not
available yet.
Before you start
1. Get access
Kay is invite-driven, so the first step is getting an account rather than getting the app.1
Ask for access
Go to meetkay.ai and choose Download. If you don’t
have an account yet, the sign-up form puts you on the waitlist.
2
Wait for your invitation
Access is granted by invitation, which arrives by email. An invitation skips
the waitlist — follow the link in it to create your account.
2. Install Kay
1
Open the download page
Choose Download on meetkay.ai. You’ll be asked to
sign in to your Kay account first — the download page is only available to
accounts that have been let in.
2
Pick your Mac
The page detects whether you’re on Apple silicon or Intel and highlights the
build for your machine. If you’d rather choose yourself, both are listed.
3
Install it
Open the downloaded
.dmg and drag Kay into your Applications folder,
then open it from there.Kay is signed and notarized by Apple, so macOS lets it open rather than
blocking it. The first time you launch it you’ll get the standard “downloaded
from the Internet” confirmation, which names the developer as Big Wombat
LLC — that’s Yak Labs’ legal entity, and seeing it means the app is the
genuine build.3. Sign in and set up
The first time you open Kay, it sends you to your browser to sign in to the same account you just used to download it. Once you’re back in the app, Kay starts a conversation instead of showing you a settings screen. That conversation is the setup. Kay asks what you actually work on, and uses your answers to get itself ready:- It takes stock of your machine first. Rather than making you describe your setup from scratch, Kay looks at what’s already there — the apps you have installed, the top-level folders in your Documents, your git identity, and any history from other AI coding tools you’ve used. It does this up front so it can ask you better questions. Anything needing your explicit consent appears as a permission card you answer yourself.
- It offers to connect the tools you already use. Slack, Gmail, GitHub, Calendar, and Notion are the ones it can learn the most from. You sign in to each in your browser, and connecting one is what permits Kay to read it — it starts looking straight away and tells you what it found. Skip any of them and connect later from Settings → Plugins.
- It keeps what you tell it. What you say here shapes how Kay works with you from then on, so it’s worth answering properly rather than rushing through.
4. Do something real
The fastest way to understand Kay is to give it a task you’d otherwise do yourself. Ask in plain language — you never have to name a model, a tool, or a file format. Good first asks:- “Summarize this document and pull out anything I need to act on.” — drag a file straight into the conversation.
- “What’s on my calendar this week that I haven’t prepared for?”
- “Draft a reply to the last email from Priya, matching how I usually write.”
- “Go through this folder of invoices and build me a spreadsheet of the totals.”
If Kay needs a tool you haven’t connected yet, it will say so and offer to set
it up mid-task, then pick your request back up where it left off.
Staying up to date
Kay updates itself. New versions download in the background, and Kay then offers you a Restart to update action — that’s the only thing that installs an update, so quitting the app normally never interrupts you with one. There’s nothing to re-download and no installer to run again. If you’ve skipped several versions, you don’t work through them one at a time. A single update replaces the app and brings you straight to the newest build.Where to go next
Developer docs
Add your own skills, tools, and integrations.
Kay home
What Kay is and who we build it for.