Given an Item identifier, the ItemLookup operation returns some or all of the item attributes, depending on the response group specified in the request. By default, ItemLookup returns an item’s ASIN, DetailPageURL, Manufacturer, ProductGroup, and Title of the item.
ItemLookup supports many response groups, so you can retrieve many different kinds of product information, called item attributes, including product reviews, variations, similar products, pricing, availability, images of products, accessories, and other information.
To look up more than one item at a time, separate the item identifiers by commas.
The following table describes the request parameters for ItemLookup. Parameter names are case sensitive.
| Parameter | Definition | Required |
|---|---|---|
Condition
|
Specifies an item's condition. If Condition is set to “All,” a separate set of responses is returned for each valid value of Condition. The default value is "New" (not "All"). So, if your request does not return results, consider setting the value to "All." When the value is "New," the ItemSearch Availability parameter cannot be set to "Available." Amazon only sells items that are "New." Default: New Valid Values: Used | Collectible | Refurbished, All | No |
Idtype
|
Type of item identifier used to look up an item. All Default: ASIN Valid Values: SKU | UPC | EAN | ISBN (US only, when search index is Books) | JAN. UPC is not valid in the CA locale. | No |
ItemId
|
A positive integer that unique identifies an item. The meaning of the number is specified by Default: None Valid Values: Valid item ID. | Yes |
MerchantId
|
Specifies the merchant who is offering the item. Make sure to use a Merchant ID and not a Seller ID, which is not supported. Default: Amazon Valid Values: MerchantId--ID of a merchant | All--Includes Amazon and all other merchants | Featured--Merchants listed when you click “Add to Cart” | Depends |
OfferPage
|
Page of offers returned by Default: 1 Valid Values; Integer between 1 and 100, inclusive | No |
RelatedItemsPage
| This optional parameter is only valid when the RelatedItems response group is used. Each ItemLookup request can return, at most, ten related items. The RelatedItemsPage value specifies the set of ten related items to return. A value of 2, for example, returns the second set of ten related items | No |
RelationshipType
| This parameter is required when the RelatedItems response group is used. The type of related item returned is specified by the RelationshipType parameter. Sample values include Episode, Season, and Tracks. A complete list of values follows this table. | Yes when RelatedItems response group is used |
ReviewPage
|
Page of reviews returned by Default: 1 Valid Values; Integer between 1 and 20, inclusive | No |
ReviewSort
|
Specifies the order in which Reviews are sorted in the return. For more information, see Sorting Reviews Default: -SubmissionDate Valid Values: -HelpfulVotes | HelpfulVotes | -OverallRating | OverallRating | SubmissionDate | No |
SearchIndex
|
The product category to search. Default: None Valid Values: A search index, for example, Apparel, Beauty, Blended, Books, and so forth. For a complete of search indices, see Search Indices. Constraint:If | Yes, for non-ASIN ItemIds |
TagPage
|
Specifies the page of results to return. There are ten results on a page. Type: Integer Default: None Constraint: The maximum page number is 400. | No |
TagsPerPage
|
The number of tags to return that are associated with a specified item. Type: Integer Default: None | No |
TagSort
|
Specifies the sorting order for the results. Default: - Usages Valid Values:
To sort items in descending order, prefix the values with a negative sign (-). | No |
VariationPage
|
Page number of variations returned by Default: All Valid Values: Integer between 1 and 150, inclusive | No |
ResponseGroup
|
Specifies the types of values to return. You can specify multiple response groups in one request by separating them with commas. Valid Values: Accessories | BrowseNodes | EditorialReview | Images | ItemAttributes | ItemIds | Large | ListmaniaLists | Medium | MerchantItemAttributes | OfferFull | Offers | PromotionDetails | PromotionSummary | OfferSummary RelatedItems | Reviews | SalesRank | Similarities | Subjects | Tags | TagsSummary | Tracks | VariationImages | VariationMinimum | Variations (US only) | VariationSummary | No |
ItemLookup also accepts the parameters that all operations can use. For more information, see, Common Request Parameters
When an ItemLookup request uses the RelatedItems response group, the RelationshipType parameter is required. This parameter specifies the means by which items are related to the one specified in the ItemLookup request (by the ItemId parameter). The following list specifies all of the valid values for RelationshipType:
AuthorityTitle—Links a non-buyable ASIN TitleAuthority parent with its buyable children. A book might have a single TitleAuthority ASIN that relates to a list of children ASINs for different formats of the same book ( hardback, paperback, audio book, kindle ). MP3 albums have the same AuthorityTitle parent as its physical CD counterpart.
DigitalMusicArranger—Non-buyable child of both MP3 albums and tracks.
DigitalMusicComposer—Non-buyable child of both MP3 albums and tracks.
DigitalMusicConductor—Non-buyable child of both MP3 albums and tracks.
DigitalMusicEnsemble—Non-buyable child of both MP3 albums and tracks.
DigitalMusicLyricist—Non-buyable child of both MP3 albums and tracks.
DigitalMusicPerformer—Non-buyable child of both MP3 albums and tracks.
DigitalMusicPrimaryArtist—Non-buyable child of both MP3 albums and tracks. This is the relation ship that show all MP3 downloads for a single artist on amazon.com.
DigitalMusicProducer—Non-buyable child of both MP3 albums and tracks.
DigitalMusicRemixer—Non-buyable child of both MP3 albums and tracks.
DigitalMusicSongWriter—Non-buyable child of both MP3 albums and tracks.
Episode—Relates an Unbox Season ( parent ) to Episodes ( children ) from that season. Note this is the same relationship as Tracks and can be used interchangeably.
Season—Relates an Unbox Series ( parent ) to its Seasons ( children ).
Tracks—Relates an MP3 Album ( parent ) to its Tracks ( children ). Note this is the same relationship as Episode and can be used interchangeably.
The RelationshipTypes values are hierarchically arranged. The following set of images show the hierarchies for MP3Downloads, UnboxVideo, and KindleStore items.In these images, the circles represent relationship types and the bell shaped figure represent items.
MP3Downloads Hierarchy

UnboxVideo Hierarchy

KindleStore Hierarchy

AuthorityTitle is similar to a variation parent in that it is an organizational tool (a container) rather than a real item that you can purchase. They do not have detail pages.
The ReviewSort parameter enables you to specify the order in which reviews are sorted in responses. The options are:
The following table describes the default response tags included in ItemLookup responses.
| Element Tag | Definition |
|---|---|
ASIN
| Amazon Standard Identification Number, which is an alphanumeric token assigned by Amazon to an item that uniquely identifies it. |
Item
| Container for information about the item, including DetailPageURL, ASIN, Title, ProductGroup. and Manufacturer. |
ItemAttributes
| Container for information about an item, including Title, ProductGroup. and Manufacturer. |
Items
| Container for one or more Item(s). |
Manufacturer
| Name of the company that manufactured the item. |
ProductGroup
| Category of the item, for example, “Book,” “DVD.” You can find the complete list of product groups by going to www.amazon.com and clicking the tab that says "See All 32 Product Categories." |
Title
| Title of the item. |
For more information about the parent elements of these tags, see the appropriate response group in Response Groups
Use ItemLookup in the following ways:
The following request returns the information associated with ItemId B00008OE6I.
http://ecs.amazonaws.com/onca/xml?
Service=AWSECommerceService&
AWSAccessKeyId=[AWS Access Key ID]&
Operation=ItemLookup&
ItemId=B00008OE6I The response to this request is shown in, Response to Sample Request.
The following request returns an offer for a refurbished item that is not sold by Amazon.
http://ecs.amazonaws.com/onca/xml?
Service=AWSECommerceService&
AWSAccessKeyId=[AWS Access Key ID]&
Operation=ItemLookup&
ItemId=B00008OE6I&
IdType=ASIN&
ItemId=B00023NDLS&
ResponseGroup=OfferFull&
Condition=All&
MerchantId=All
In this example, because the item is not sold by Amazon, the following values must be set: Condition=All and MerchantId=All or the ID of a specific merchant.
In the following request, the ItemId is an SKU, which requires that you also specify the MerchantId and IdType. A MerchantId value is required because the default value is "Amazon," and items for sale by Amazon are never identified by an SKU value.
http://ecs.amazonaws.com/onca/xml? Service=AWSECommerceService& AWSAccessKeyId=[AWS Access Key ID]& Operation=ItemLookup& ItemId=[SKU]& MerchantId=[MerchantID]& IdType=SKU
In the following request, the ItemId is a UPC, which requires that you also specify the SearchIndex and ItemType.
http://ecs.amazonaws.com/onca/xml? Service=AWSECommerceService& AWSAccessKeyId=[AWS Access Key ID]& Operation=ItemLookup& ItemId=[UPC]& SearchIndex=Books& &IdType=UPC
In the following request, the ItemId is an EAN, which requires that you also specify the SearchIndex and ItemType.
http://ecs.amazonaws.com/onca/xml? Service=AWSECommerceService& AWSAccessKeyId=[AWS Access Key ID]& Operation=ItemLookup& ItemId=[EAN]& SearchIndex=Electronics& IdType=EAN
Use the BrowseNodes response group to find the browse node of an item.
Use the Tracks response group to find the track, title, and number for each track on each CD in the response.
Use the Similarities response group to find the ASIN and Title for similar products returned in the response.
Use the Reviews response group to find reviews written by customers about an item, and the total number of reviews for each item in the response.
Use the OfferSummary response group to find the number of offer listings and the lowest price for each of the offer listing condition classes, including New, Used, Collectible, and Refurbished.
Use the Accessories response group to find the a list of accessory product ASINs and Titles for each product in the response that has accessories.
The following code snippet is a response to the first request. It shows all of the item attributes that are returned by default.
<Items>
<Request>
<IsValid>True</IsValid>
<ItemLookupRequest>
<ItemId>B00008OE6I</ItemId>
</ItemLookupRequest>
</Request>
<Item>
<ASIN>B00008OE6I</ASIN>
<DetailPageURL>http://www.amazon.com/exec/obidos/redirect?tag=ws%26link_code=xm2%26camp=2025%26creative=165953%26path=http://www.amazon.com/gp/redirect.html%253fASIN=B00008OE6I%2526tag=ws%2526lcode=xm2%2526cID=2025%2526ccmID=165953%2526location=/o/ASIN/B00008OE6I%25253FAWSAccessKeyId=[AWS Access Key ID]</DetailPageURL>
<ItemAttributes>
<Manufacturer>Canon</Manufacturer>
<ProductGroup>Photography</ProductGroup>
<Title>Canon PowerShot S400 4MP Digital Camera w/ 3x Optical Zoom</Title>
</ItemAttributes>
</Item>
</Items>