---
title: "Kustom API Keys"
url: "https://support.acendy.com/en/article/kustom-api-keys"
language: "en"
last_updated: "2026-03-03T11:25:02.264Z"
---

# Kustom API Keys

This article explains how to generate and manage API keys in Kustom (formerly Klarna), and how to add them to Mystore.

## Generate a New API Key in Kustom

API keys are used to connect your online store to Kustom and ensure secure communication between the systems.

Follow these steps ([based on Kustom’s Help Center](https://help.kustom.co/en/articles/320254-integrations)):

1.  Go to **Kustom Portal** and sign in.
2.  Click **Integrations** in the left-hand menu.
3.  Click **Generate new**.
4.  Wait while the key is created.

Once the key has been generated:

-   A pop-up window will display the password (secret key).
-   Copy and store the password in a secure location.
-   The password cannot be retrieved after the window is closed.

![generate new api keys](https://downloads.intercomcdn.eu/i/o/kefiu7b8/97657617/747684c66eb9268a83d0ac84bc0c/generate+new+api+keys.png?expires=1772537400&signature=dc0bc4ab6577d00d17c67d51bd47e92efbbe312197c6c467db42896c7cdcd4e1&req=2dJpwF%2F8rTBk2hL085ZhodnQsZfOoSJJYe4m2mlG88jTMKUwwdZ0n%2BJJ%2Fgf0%0AZ0yZs7RravNTLQe%2F%0A)

***Important:***  
*If you lose the password, you must generate a new API key and delete the old one.*

## Add the API Key in Mystore

After copying the credentials:

1.  Go to **Extensions → Your extensions**
2.  Search for **Klarna Checkout V3**
3.  Click **Credentials**
4.  Enter **Kustom ID** (username) and **Kustom Secret** (password/secret key)
5.  Click **Update ID and Secret**

## Delete an API Key

If you need to delete a key:

1.  Go to **Kustom Portal → Integrations**
2.  Click the three dots next to the relevant key
3.  Select **Delete API Key**

## Important to Know

-   Store API keys securely when generating them
-   Never share API keys publicly
-   Delete old keys that are no longer in use

* * *

## Troubleshooting

### "Integrations" is not visible in Kustom Portal

This is usually caused by insufficient permissions.

**Solution:**

-   Contact your account administrator
-   Request the correct permissions via **User Manager** in Kustom Portal
-   Alternatively, ask the administrator to provide the API keys directly