Resources for Developers Using Amazon's Product Advertising API
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FAQs

Can a browse node have more than one search index?
Yes, a browse node will often return results for more than one search index. Sometimes those results make sense - for example when a node has products in both the Apparel and Merchants indexes - but, most of the time, the other indexes either... [More]
Do I need to keep my AWS Access Key ID secret?
If you've signed up for Amazon's Web Services, you were issued an AWS Access Key ID and a Secret Access Key. The Secret Access Key is not used when making queries to A2S. It is only used with the Amazon Web Services that are not free. You must... [More]
How can I create simple text links to Amazon.com using UPCs?
To link to a product at Amazon,com using a UPC, you have a few options. Using Amazon's Web Services (AWS) you can do an ItemLookup using a UPC to get information on the product including the ASIN. It only works if the catalog data at Amazon... [More]
How can I create simple text links to Amazon.com?
Amazon provides tools to build "widgets" and create iframes that display Amazon banners or products. But, many have found that simple text links are a much more effective way of driving traffic to Amazon. For instructions on how to create simple... [More]
How can I find other CDs or MP3 downloads by the same artist?
Unfortunately, there is no definite way to find all the CDs or MP3s associated with the same artist as a given CD or MP3. The best you can do is to find the ASIN of the Artist ASIN associated with the CD or MP3 download. Once you know the Artist... [More]
How can I find the CD related to a MP3 Album?
You can use the RelationshipType parameter with the RelatedItems response group to find the CD related to a specified MP3 album download. For example, consider the album Human by The Killers. The ASIN of the MP3 version of the album is... [More]
How can I find the Kindle edition of a printed book?
You can use the AlternateVersions response group to find the Kindle edition of a book. For example, consider the book The Complete Idiot's Guide to Publishing Children's Books. The ASIN/ISBN of the printed hard-bound version of the book is... [More]
How can I get a list of the "Top-Level" browse nodes at Amazon.com?
A2S doesn't directly define any top-level or root browse node. There is an IsCategoryRoot element in the browse nodes information response that identifies some of the top-level categories, but you can't query directly for those nodes. You can... [More]
How can I get good search results from A2S?
The search results returned by A2S's ItemSearch operation don't match the results a visitor to Amazon.com sees when searching for the same phrase. This is probably because the tools A2S supplies for searching were not designed to allow us to... [More]
How can I link to a product at Amazon.com by UPC?
You can use the "Link to Search Results" tool in Associates Central under "Build Links" / "Link to Any Page...." Enter UPC in the "Keywords" field and any text in the "Name Your Link" field. Click "Get HTML." Copy the URL from the resulting... [More]
How do I find the MP3 downloads associated with a CD?
You can use the RelationshipType parameter with the RelatedItems response group to find MP3 downloads associated with a CD (or the CD associated with an MP3 download). For example, consider the album Human by The Killers. The ASIN of the CD... [More]
How do I find the Video Downloads associated with a DVD?
You can use the RelationshipType parameter with the RelatedItems response group to find Video Downloads associated with a DVD (or the DVD associated with a Video Download or the Blu-Ray associated with a DVD, etc.). For example, consider the DVD... [More]
How do I know what search index to use in an ItemSearch operation?
If you use the ItemSearch operation to provide general search results, you run into a problem. The ItemSearch operation requires you to specify a Search Index. Unfortunately, there's no straightforward way to relate a keyword phrase to the search... [More]
How do I search for song titles using A2S?
Use the ItemSearch operation with the Keywords parameter and the MusicTracks response group. For example, the following link displays an A2S query looking for songs with the keyword "Mr. Richland": >>> ItemSearch for Song Titles The... [More]
What is a good conversion rate for Amazon.com?
Unless you are comparing sites that are very much the same and sell the same items, comparing the conversion rates that Amazon reports doesn't mean much. The conversion rate on your Associates reports varies widely based on the type of your... [More]

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