How to embed the code?
Step 1 / Tab "Convert"
Select an image by clicking the button "Select Files". Upload your image. The process of converting it to html-code will start immediately.
Select the right quality of the image-to-code process by selecting the "Reduce-factor". Reduce-factor "0", means no reduction at all; reduce-factor "4" will deliver the smallest code-size.
Add additional setting (ie add a link, where to store the code) and press the "Save" button.
Step 4 / Tab History
Go to the tab "History" and select the button "Show HTML-code". Copy the code. Go to your MailChimp-template and paste the code into your email-template.
API-usage is explained on the API-page.