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The Nuki Smart Lock is an electronic, retrofit door lock that can be installed on the inside of the door within a few minutes, without screws or drilling. In combination with the Nuki app, it turns the smartphone into a smart key, with access permissions sent to guests for their corresponding booking period.
Follow the instructions below to connect Nuki to Guesty.
Use voucher code GUE2TY21N to get 15% off your purchase in the Nuki online shop. Restrictions apply. For B2B pricing for 10 or more units, contact the Nuki sales team:

Copy the Guesty API Key

Step by step:

  1. Sign in to your Guesty account.
  2. In the top menu, hover over Integrations.
  3. From the drop-down, select Marketplace.
  4. On the Nuki thumbnail, click Connect.
  5. In the top right corner, click Connect.
  6. Click the API Key to copy it.
  7. Click Ok.

Connect Nuki With Guesty

Step by step:

  1. Sign in to your Nuki Web account.
  2. In the sidebar menu, click SHORT-TERM RENTAL.
  3. Click the Connect now button.
  4. In the pop-up box, under "Guesty", click Link.
  5. Under "Guesty Token", enter the API key copied in the steps above.
  6. Click Link.
  7. After Guesty listings appear, click on each listing to connect with the device of the property.

Sharing key codes with guests

In order to share the key codes with your guests you must set up Automated Messages that include the code variable. Follow the steps below.

  1. Create or edit an automated message to send to guests based on reservation confirmation or check-in. See more information here.
    • Schedule at least 20 minutes after reservation confirmation to allow time for the variable to populate.
  2. In your message content, use the variable {{key_code}}. See more information here.

If the code was not sent, follow this troubleshooting guide.


Read more about Nuki here. For more information, contact Nuki Support at

Nuki FAQs

When will the guest receive the code? Can we block the code being sent if the online-check in form has not yet been filled in?
Nuki updates the code in the "keycode" field in Guesty. You can set up automated messages to include the "keycode" field according to any available filter. See above for more details.
Will the user see in the inbox if the code was sent?
If the code is sent via auto message, it will appear in the inbox.
Can we as the management company use only Guesty for Nuki, as long as the owner has the Nuki app?
We recommend that you have direct access to the Nuki app, to prevent potential lockouts if something does not work.
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