To create your API Key from Kraken, please follow the steps below-
Step 1- Sign to your Kraken account here.
Step 2- Click on your name in the upper-right corner of the page.
Step 3- Click on "Security" and then "API".
Step 4- Click on the "Add key" button.
Please note: when inputting the API keys please input Read-Only keys and give permission to your full transaction history.
Step 5- Now copy your API Key, Secret Key, and passphrase. Go to the "Accounts" page in the Lukka Software, and select "Add API Keys" to your Kraken account. Paste them in the appropriate fields.