Sitevision has a REST API which can be useful when creating various integrations. For myself, I mostly use it for traversing hidden content.
One great thing about the API is that it mirrors the tree structure that the site has. So you can easily find children for a context node and continue walking down the tree. However, copying an identifier from an unformatted JSON text in your browser and inserting it in the address field is quite cumbersome. For that reason, I made a website where you can navigate a Sitevision website through the API but with regular links.
How about exploring Sitevision's own website through the API explorer?