CHICAGO, Nov. 13, 2017 /PRNewswire/ -- Today, Barchart, a leading provider of market data and financial technology, announces newly updated free market data APIs with North American coverage for ...

Developers will be able to access YA data by user, search keyword, or category. The company says the API is almost identical to the interface used internally to create the recent Yahoo!

After a few days they made decisions based on that data. So they then integrated with the AdWords API. Now they can see on a real time basis, if the product is out of stock, then don't advertise it.