This API endpoint checks if an Email has been used in spam and fraudulent activities. It scores the reputation of the email: the more negative the score, the riskier the email. A positive score normally its an email with good reputation, and a zero score means neutral.
Moocher.io is a set of lists like IP, domains, emails, passwords, creditcard BIN/IIN. Some of them marked as 'abusers' by several groups and initiatives of users and communities, and others used to filter out potential abusers.
Moocher.io can be defined as a Look up as a Service for developers and product companies that want to know in realtime if their existing or potential users have been classified as 'abusers' by one or more of these lists.