The full overview of all data and their methods/functions that you can use to retrieve them can be viewed on the Castor API R Package project page.
Check our Using the Castor API R package for data analysis tutorial to get started with the R package.
If you need other data, you can also check out the API documentation and the article Which data from EDC/CDMS can be retrieved (GET) and sent (POST) with the API? to see what data you can retrieve with the existing API endpoints.
See the API section for more information on how you can use the API directly.
Please note that our API Developer Policy is applicable for Castor CDMS.