Is there a way to work with privacy lists through the REST API? I know that the SDKs for iOS and Android SDKs do this, but I need a web solution. Thank!
Yes,
Privacy APIs - This is the XMPP Registry API
Here is a list of all XMPP libraries https://xmpp.org/xmpp-software/libraries/
Here is the XMPP documentation http://xmpp.org/rfcs/rfc3921.html
check 5,6,7,8,9 sections