On BitMart select your account name in the top right corner.

Select API Management from the drop-down menu.

Under create new API, write a name in the memo box.

Make sure that under authority, only read-only is selected.

Complete the two factor authentication.

Select submit.

Copy your API key - store it somewhere safe, you won't be able to see it again.

Select confirm.

Now go back on CryptoBooks Connections page and click on Add Connection

Click on the BitMart logo by filtering the list using the Exchange API tab or digit the name in the quick search box

Give a name of your choice to your connection, select the default category and press the Next step button

Insert the keys copied from BitMart and press Connect exchange

Done! The sync between BitMart and your CryptoBooks account just started!