Use the threat intel endpoints to get information on feeds:
GET https://<IA_IP_address>:<port_number>/threatintelservice/v1/feednamePOST https://<IA_IP_address>:<port_number>/threatintelservice/v1/feedname/<feed_name>POST https://<IA_IP_address>:<port_number>/threatintelservice/v1/feedname/<feed_name>/<active>DELETE https://<IA_IP_address>:<port_number>/threatintelservice/v1/feedname/<feed_name>POST https://<IA_IP_address>:<port_number>/threatintelservice/v1/uploadfile