To properly setup your organization’s MailChimp integration you will first need your MailChimp API Key. To locate your API Key please follow the steps below:
Login to your MailChimp account via http://mailchimp.com
Once logged in to MailChimp, click on the Account Name at the top of the left hand side bar and select Profile.
Click on Extras and a drop down will appear. From here, select API Keys.
Under Your API Keys you’ll find your API Key listed in the table below. Copy the API Key and insert it back into your Classy account under the Extensions tab.