It seems that calling b2_delete_key is free. It's just not conveniently abstracted. Listing the items however if you don't already have a catalog is $4/M items
That doesn't seem correct. Each call to b2_list_keys can return up to 10 000 results, so it's $0.40/M items.
That doesn't seem correct. Each call to b2_list_keys can return up to 10 000 results, so it's $0.40/M items.