The operating system
for the front door.

One verifiable system for every knock, every pass, every unlock — built for residents, managers, and the people who arrive at the gate.

Open the manager console Visitor entry

audit: Immutable
verify: SMS OTP
unlock: Remote

Threshold / 001

station / lobby 01

14:22 UTC

Incoming visitor

Maya Chen

DoorDash · order #7B22 · verified by SMS

Approve

Unlock lobby door

Decline

End the call

expires in 0:38audit · #14820

02 — Mission

why we build

We're building the operating system for the front door — replacing the tangle of intercoms, key fobs, and call boxes with one verifiable system. Residents stay in control of who reaches them. Managers run their property with an audit trail instead of a clipboard. Visitors are seen, identified, and let in without guesswork.

03 — Surfacesthree apps, one record

Three doors. One system.

/ Resident

Hold the keys to your own door.

A mobile app for the moments at the threshold.

Live visitor alerts
with a 60-second countdown
Audio + video calls
camera and mic in your control
Self-access unlock
pick any door you’re allowed through
Temporary passes
duration, delivery, share by SMS or email
Activity log
approvals, denials, missed calls, incidents
Consent-aware recordings
playback with retention you can see

/ Manager

Run the building, not the clipboard.

A console for the people who keep the property moving.

Bulk resident import
CSV with units, groups, move-in dates
Access control console
who opens which doors, remote-unlock eligibility
Device health
online, offline, firmware, last heartbeat
Video library
consent state, retention, incident holds
Operations center
incident queue + SMS, email, push delivery
Stripe billing
subscriptions, plans, paywall by feature

/ Visitor

A door that knows you're coming.

A web experience for everyone who arrives.

QR-based entry
scan, request, no app required
SMS verification
one-time code before the call connects
Audio or video call
talk to the resident in real time
Real-time outcome
approved, denied, missed, ended
Pre-approved passes
redeem a code, skip the call
Blocklist enforced
property-level safety, every time

04 — Trustinfrastructure-grade by default

SMS OTP verification
Immutable audit trail
Consent-aware recording
Delegated roles
Twilio · Vonage · Stripe

05 — Entranceschoose your door

For property managers

Take command of every access point.

Residents, doors, devices, video, incidents — and the billing behind them — in one console.

manage.open-sesame.co

For residents & visitors

Step up. Be let in.

Scan a code, verify by SMS, talk to the resident — the door opens. No app required.

visitor.open-sesame.co