With the User Member API you can retrieve information about members that are also Wix users. You can retrieve all members associated with a user identity across multiple sites.
- Wix user: Users include site owners, who create a site, and site collaborators, who are invited by site owners to help manage the site and business.
- Identity: Unique identifiers Wix uses to identify actors. Each identity has their own ID and access type. Identities include visitor, member, user, app and API key.