Weakness in the CREST API
If you look hard enough, you’ll likely find plenty of examples of players manipulating the EVE Central data for their own nefarious purposes. With that in mind, I began investigating using the CREST API for the market data I use in the loss reports.
What I found is that the data provided by the CREST API is only aggregated at the region level rather than the system level. This means that I can not accurately provide profit data for those wishing to use different buy and sell systems. This may be an unnecessary level of granularity, but it’s one that I highly prefer.
So, although the data in EVE Central may suffer from validity issues, I will continue to rely upon it until CCP increases the granularity of their market API.