CryptoTrader.Tax only needs "Read" or "View" access to import your trade history. This permission protects your accounts. Learn more about API access in this article here.
Login to your KuCoin account.
Navigate to the API management page and click the Create API button.
Use "CTT" as the API Name and pick a phrase you will remember for the API Passphrase, you will need this later.
Click on Change and change the permission level to only General. Take note of the Key and Secret for the next step.
Back in CryptoTrader.Tax, enter your Key, Secret, and Passphrase from earlier steps into their matching fields on the KuCoin tab.
Click on the Import Your Trades button to start the importer.