I see a lot of different eBay software out for different purposes . Some has the ebay certification logos on their sites and some don't
For instance, HammerTap has the ebay based on ebay market data logo on their site. They are obviously using ebays data but what if someone came out with there own market analysis software, and didn't have that logo on the site. Would they get in trouble with ebay?
Basically if someone made a eBay tool and, used there data and other functions, without having those "stamps of approval" would they still be considered authentic?
Furthermore are you even allow to make a ebay software tool without ebay's approval? Or would they sue you if you did?
If you provide a service using eBay's closed item data without subscribing to the eBay Market Data Program (or using an official reseller) to you should expect a letter from their legal department. Most services and software that used to obtain eBay data from page scraping have closed down or changed over to the official Program, but are still companies using that method that have managed to survive.
There are many tools that access eBay without using the official API, for example every sniping tool. There used to be many more before eBay made the API free. Although it is against eBay's User Agreement to "use any robot, spider, scraper or other automated means to access the Sites" they have generally not taken action against either sniping or other unauthorized tools.
I've spent the better half of Saturday afternoon researching a lot of eBay marketing analysis tool and ebay officaial reseller of their data DataUnsion, and it seems there is alot of tool on the market for analysis.
Although it also seems that a lot of the tools out for analysis doesn't use data unsion for there data.
My question is wouldent ebay take swift action to file a lawsuit against that tool creator, or do they figure that if your using the data for the good of ebay that it doesn't really matter?
My second question is with data unsion, what is a call? It's says that you can purchase API for whatever and get however many calls inculded.
Does that mean when someone does a reseach that counts for a call, or when a differnet IP address is logged it counts for a call? Meaning that I can do as many researches I want but I have the same IP address.
An API call is the use of one of the functions of the API. For example, there is a call named GetSellerTransactions (which returns the sales for a particular eBay account) so, if a program is written that uses this call, this counts as 1 call to the eBay database.
This goes back to a couple of years ago when eBay used to charge developers for every call they made to the eBay database, it has nothing to do with IP addresses.
would eBay take swift action to file a lawsuit against that tool creator, or do they figure that if your using the data for the good of ebay that it doesn't really matter?
Only eBay can answer that. When they first introduced the eBay Market Data program they contacted the developers of research tools that were using page scraping, and many closed down or changed to official data at that time. If you were to set up a business using page scraping to get data you would have to accept the risk of eBay taking action against you.
John is right that an API "call" is one use of one method of an API. It is how the API is set up technically, what you want to do with it, how you design your application, and what your level of usage is that determines how many calls you will need to make.
Note that the eBay API, and the DataUnison API are separate. While the eBay API is now free, the DataUnison API is not, although there is a free version for non-commercial use.