Software Creation and its authenticity

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United States United States
JasJay
Kudos: 45
Joined: Feb 14, 2008
Software Creation and its authenticity
14 Feb 2008
I was just wondering

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?

Thanks
JasJay
United Kingdom United Kingdom
johndon
Kudos: 175
Joined: May 12, 2006
Re: Software Creation and its authenticity
15 Feb 2008
A lot of applications that take data from eBay do so by using 'screen scraping' so don't link directly to eBay's database.

If you write an application using eBay's developer API, you have to go through a certification process before they will issue keys that will allow the application to access their 'live' database.

This would explain why some applications show the certified logo and others do not.

John

[Last edited: 15 Feb 2008]
Herts, England United Kingdom
Andy
Kudos: 11,619
Joined: Jan 1, 2001
Re: Software Creation and its authenticity
15 Feb 2008
Hi JasJay, good question

There are two different parts to this, one is about the eBay Market Data Program and the other is about the eBay Developers Program generally.

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 hope that helps!
Andy Geldman, Web Retailer
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United States United States
JasJay
Kudos: 45
Joined: Feb 14, 2008
Re: Software Creation and its authenticity
15 Feb 2008
Thanks johndon for the response

Thanks to Andy as well, but I'm confused on something that you said.

"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."

Would "closed item data" mean auction, that are expired or now closed, and archived in ebay databased?
Herts, England United Kingdom
Andy
Kudos: 11,619
Joined: Jan 1, 2001
Re: Software Creation and its authenticity
16 Feb 2008
Hi JasJay,

Yes I mean closed auctions. You can search eBay for auctions that closed within the last 14 days.

If you scrape this data and resell it, eBay won't be happy because they sell it themselves.
Andy Geldman, Web Retailer
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United States United States
JasJay
Kudos: 45
Joined: Feb 14, 2008
Re: Software Creation and its authenticity
16 Feb 2008
Hi Andy

Here comes more questions...

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.

Thanks
-JasJay
United Kingdom United Kingdom
johndon
Kudos: 175
Joined: May 12, 2006
Re: Software Creation and its authenticity
17 Feb 2008
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.

HTH

John
Herts, England United Kingdom
Andy
Kudos: 11,619
Joined: Jan 1, 2001
Re: Software Creation and its authenticity
17 Feb 2008

JasJay wrote:

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.
Andy Geldman, Web Retailer
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United States United States
JasJay
Kudos: 45
Joined: Feb 14, 2008
Re: Software Creation and its authenticity
18 Feb 2008
Hi

Thanks Johndon for the reply
I kinda of get it now but, not all the way.

I was reading through DataUnsion API price
and it says

$1,450 w/10,000 calls included

If I was to offer a product to this market and had
people sign up for it, lets say 3000 people, would
that be within the limits of 10,000 calls?

And Andy, what is the difference between dataunsion and
ebay API and where can I find ebay API?

Thanks for the help

-JasJay
United Kingdom United Kingdom
johndon
Kudos: 175
Joined: May 12, 2006
Re: Software Creation and its authenticity
19 Feb 2008
The eBay API calls are free, I wasn't aware of the DataUnison API.

You can get the eBay API from here: www.developer.ebay.com/

John
Herts, England United Kingdom
Andy
Kudos: 11,619
Joined: Jan 1, 2001
Re: Software Creation and its authenticity
19 Feb 2008
The eBay API is for writing eBay compatible applications that interact with eBay to perform the day-to-day tasks for buying and selling on eBay (but not bidding).

The DataUnison API and eBay Market Data Program are for creating applications that use data on closed eBay listings.
Andy Geldman, Web Retailer
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