Through the /products.json method, I only got the last 30 products, but through reading a bit of what DMiradakis linked to, I decided to try going to a specific product page and appending .json to the URL. It works and is far more convenient.
Actually, there is a way to see the addition of products and collections. A bit cumbersome, but try this link:
For reasons that are beyond the comprehension of any rational mortal, there is no link to that page in the Admin section of the store. SMH.
Here is what it looked like in one of our stores.