Exploring Custom API Integration for Expanded SEMrush Data Access

Hey team, We are looking to pull data in from SEMrush and we noticed that the default connector can get competitors in paid search & traffic analytics: https://www.clay.com/integrations/data-provider/semrush Assuming it's possible to pull in more data from SEMrush (I.E. ranking presence, paid search traffic), it's possible through a custom API integration?