In MailChimp Settings section you can add API key. It’s an important step if you want to use MailChimp widget further at your website.
To apply this key, navigate to Theme Options -> MailChimp section in your dashboard.
MailChimp is a web-based email marketing service that helps you design email newsletters, share them on social networks, integrate with services you already use, and track your results.
Our theme comes with a MailChimp subscription form that can be added to any post/page sidebar as a widget.
You can get MailChim API key by clicking the Get API Key link in your admin panel or by following this URL: get MailChimp API key.
Adding MailChimp Subscription Form
More info about sidebars and widget areas can be found here: Setup sidebars.
Navigate to Appearance -> Widgets section in your dashboard and add “Churchope -> MailChimp” widget to a sidebar.
A few settings will appear to manage notices and lists in this form.