We've released a bug fix for productprovider API and aligned it with the rest of our APIs which means there is now a limit of 500 providers per request, and the default is 100 providers per request.
A note about our APIs and pagination
Most of our APIs support that returns big collections supports Top and Skip for pagination.
skip - Number of records to skip. Must be greater than or equal to zero.
top - The number of records to retrieve (default 100, max 500).
Please not that there might be some variations to default and max values for top. But never more than the above values.