Click on "Cryptos" then "Exchanges".
You will have to add your API key and your private key on the next page.
Log in to Kraken. Select "API" from the drop-down menu at the top right of your screen.
Create a key by selecting "Add Key".
Name your key (very original example: "Finary"), check the options displayed below and generate the key. If you don't check the right options, it won't work!
Your keys have been generated! Congratulations! Be careful, the secret key will be displayed only once, during the creation. If you lose it, you will have to create a new one.
Copy and paste your keys in the corresponding fields on Finary and validate.
And that's it, your Kraken account is synchronized and visible in the Cryptos section of your estate. Its value will be automatically updated on Finary.