shortrental.ai

Connect smart locks

Generate unique PIN codes per booking across 13 lock brands.

Updated: Apr 9, 2026

Shortrental.ai supports 13 smart lock brands natively. This guide shows you how to connect them and enable per-booking unique PINs.

Supported locks

  • Yale — Assure 2, Assure SL, Linus L2
  • Schlage — Encode, Encode Plus, Sense
  • August — 4th gen, Wi-Fi Smart Lock
  • Nuki — Smart Lock 3.0, 4.0, Pro
  • Igloohome — Deadbolt 2S, Mortise 2+, Padlock
  • Kwikset — Halo, Halo Touch

Support for Salto, Dormakaba, TTLock is in private beta — contact sales.

Connect a lock

  1. Go to Smart Devices → Add Device
  2. Pick your brand from the list
  3. Follow the OAuth flow (or enter a device code for Igloohome-style locks)
  4. Assign each lock to a listing

Enable per-booking PINs

In Smart Devices → Settings → Access codes, enable:

  • Auto-generate PIN per booking — a fresh 4–8 digit code for every guest
  • PIN activation window — default 2 hours before check-in
  • PIN expiry — default 1 hour after checkout
  • Share via — email, SMS, WhatsApp, or all three

PIN length

Most operators use 6-digit codes. Security research suggests 6 is the sweet spot between memorability and brute-force resistance.

Offline fallback for Igloohome

Igloohome locks generate valid PINs using an offline algorithm — no WiFi needed on the lock side. Shortrental handles this transparently. If your lock is offline when we generate a PIN, we send it to the guest anyway; the lock will accept it when they enter it.

Verify your setup

Send yourself a test booking and check:

  1. The PIN appears in the guest portal 2 hours before check-in
  2. The PIN is unique to this booking
  3. The lock accepts the PIN
  4. The PIN stops working 1 hour after checkout

Troubleshooting

Lock says "offline" — your lock's WiFi bridge is down. For most brands this is fine; PINs still work for guests. Yale specifically needs WiFi for Auto-Lock; set auto-lock on the lock itself via the Yale app.

PIN rejected — verify the lock's clock is synced. Most modern locks auto-sync when online; if you replaced the batteries recently, the clock may have reset.

No PIN generated — check Smart Devices → Settings → Access codes is enabled for this listing.