Retrieval Dataset by Dataset Name or Id (API)

Maybe I misunderstood… when the API docs say “:id”, often you can just use the name.
The only way I have seen to get the actual internal ID is when you hover over the dataset name in the GUI.
A guess at how to download: have not seen a way without first doing a generate. Generate has a way to specify a data set (at least via the GUI)
see Mockaroo - Random Data Generator and API Mocking Tool | JSON / CSV / SQL / Excel to get all the details of what, I think, you have to include. I will try to do it via API.