Meet the digital doorman that never sleeps.
When a guest's smart lock jams at 2am and you're unreachable, GrantKey verifies their reservation and gets them in — automatically, in seconds, the same reliable way every time.
You didn't sign up to be a 24-hour locksmith.
Smart locks fail. Batteries die. Bolts jam. And it never happens at a convenient hour. Right now, when a guest gets locked out, the phone call routes straight to you — or worse, straight to a bad review.
One job. Done right.
There's no shortage of tools out there promising to handle everything for your rental. GrantKey isn't one of them — it's a lockout fallback system, nothing more, nothing less. It doesn't handle wifi passwords or parking instructions. It has exactly one responsibility: when a guest is locked out and can't reach you, verify who they are and get them their backup key. Fast, accurate, and without waking you up — the same reliable way every time.
How it works
Guest texts in
They text the property name from a sign posted right by the door.
Reservation gets verified
GrantKey checks their name and the time against your live booking data — automatically.
Backup key, delivered
Verified guests get the backup key location and code instantly. You're notified after the fact, not woken up before.
GrantKey only texts a guest after they text first, and only about that lockout. No lists, no marketing.
See the full how it works →No AI guessing on your security.
Verifying who gets into your property isn't a place for a chatbot to improvise. GrantKey's verification is rule-based and deterministic — it checks a guest's name and the time against your actual reservation calendar, every time, the same way. No hallucinations. No creative interpretation. Every decision is logged and auditable.
Built for hosts and property managers
Whether you self-manage a couple of properties or run reservations for a portfolio, GrantKey plugs into your existing booking calendar and just works in the background.
Individual hosts
Stop being your own emergency locksmith. GrantKey covers the overnight lockouts so you don't have to.
One less 2am phone call, every time a lock acts up.
Property managers
One verification system across every property in your portfolio, tied to the reservation calendars you already use.
Set it up once per property, then let it run in the background.
The sign guests see.
Each property gets a GrantKey sign by the door. It shows the property name and the GrantKey number. A locked-out guest texts the property name to that number, and that first text is how they start. We never text anyone who hasn't texted first.
See exactly how guest texting works →
Sign artwork shown.
Questions? Talk to a person.
GrantKey is operated by Bower & Kip Properties, LLC d/b/a GrantKey.
Stop being your own backup plan.
Tell us about your properties and we'll get back to you.