Amazon Creators API vs Best Buy Products API for AI agents
Amazon Creators API is Amazon's REST product catalog API for Amazon Associates, which replaced the deprecated Product Advertising API 5.0. Best Buy Products API is Best Buy's REST API over its product catalog, past and present, alongside Stores, Categories, Reviews and Recommendations APIs.
The short answer
- Amazon Creators API: Affiliate publishers who already earn Amazon Associates sales and want live Amazon catalog data with tracked links.
- Best Buy Products API: Self-serve access to a large US electronics catalog with live prices and direct add-to-cart links.
Side by side
| Amazon Creators API | Best Buy Products API | |
|---|---|---|
| Searches | Amazon's product catalog by keyword, filters and browse node (SearchItems), plus item lookup by ASIN, product variations and the category tree. | Best Buy's catalog of over a million products, current and discontinued, with pricing, availability, specifications, descriptions and images. |
| Returns | Product details for items, their variations and browse-node (category) information; GetItems takes up to 10 item IDs per call. | Product records with sale and regular price, a BESTBUY.COM product page URL and an add-to-cart URL, plus specs and images. |
| Before the first call | An approved Amazon Associates account for the target marketplace with at least 10 qualifying sales in the past 30 days, then registration for API access in Associates Central and generated credentials (OAuth 2.0 client credentials). | A developer account and an API key, requested with an email address and activated from the emailed instructions; calls are limited per key. |
| Acting on a result | Affiliate links: results are tied to your Associates Partner Tag, and buying happens on Amazon; the Associates rules forbid you placing orders on an Amazon site. | Buy link: each product has a BESTBUY.COM product URL and an addToCartUrl; checkout through the separate Commerce Gateway API needs Best Buy's pre-approval. |
| Limits on keeping or showing results | Product data other than images may be cached for up to 24 hours; images may not be stored (image links up to 24 hours); ASINs may be kept indefinitely. Shown prices need a date/time stamp. | Content may be cached only temporarily, for no more than 72 hours, and only to speed up display; content must be attributed to Best Buy. |
| AI in its terms | Program content may not be used to develop or improve large language, multimodal or machine-learning models. Separate Agent Terms require any agent using the content to identify itself in every request and not conceal that it is an agent. | Not stated on its pages |
| Coverage | Amazon marketplaces worldwide; credentials work across marketplaces, but API access must be approved in each region and needs a Partner Tag for that marketplace. | BESTBUY.COM (United States); the Stores API covers stores in the US and Puerto Rico. |
| MCP server | No official server listed | No official server listed |
Where Openpath fits
Openpath has no products listed yet. Sellers can list a product on Openpath today, free, and agents will find it through the same search as jobs and businesses. Get listed.
Questions people ask
What do I need before I can use Amazon Creators API?
An approved Amazon Associates account for the target marketplace with at least 10 qualifying sales in the past 30 days, then registration for API access in Associates Central and generated credentials (OAuth 2.0 client credentials).
Is Amazon Creators API free?
Its pages listed no free use when we read them on October 15, 2026.
What do I need before I can use Best Buy Products API?
A developer account and an API key, requested with an email address and activated from the emailed instructions; calls are limited per key.
Is Best Buy Products API free?
Its pages listed no free use when we read them on October 15, 2026.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
Amazon Creators API, read on October 15, 2026:
- affiliate-program.amazon.com/creatorsapi/docs/en-us/paapiv5-deprecation: “The Amazon Product Advertising API 5.0 (PA-API 5) has been deprecated and is being replaced by the Creators API.”
- affiliate-program.amazon.com/creatorsapi/docs/en-us/paapiv5-deprecation: “Product Advertising API is deprecated. Please migrate to Creators API using the migration guide at”
- affiliate-program.amazon.com/creatorsapi/docs/en-us/introduction: “The Creators API is a REST-based API that provides programmatic access to Amazon's product catalog data”
- affiliate-program.amazon.com/creatorsapi/docs/en-us/introduction: “Search for products using keywords, filters, and browse nodes”
- affiliate-program.amazon.com/creatorsapi/docs/en-us/introduction: “Have at least 10 qualifying sales within the past 30 days to access the PA API through the Creators API”
- affiliate-program.amazon.com/creatorsapi/docs/en-us/introduction: “Be enrolled in the Amazon Associates program for your target marketplace”
- affiliate-program.amazon.com/creatorsapi/docs/en-us/frequently-asked-questions: “You will need a valid Partner Tag for the target marketplace and Creators API access approved in that region.”
- affiliate-program.amazon.com/creatorsapi/docs/en-us/frequently-asked-questions: “Yes. Your credentials work globally across all marketplaces.”
- affiliate-program.amazon.com/help/operating/policies: “You may store other Product Advertising Content that does not consist of images for caching purposes for up to 24 hours”
- affiliate-program.amazon.com/help/operating/policies: “you may store individual Amazon Standard Identification Numbers (ASINs) for an indefinite period”
- affiliate-program.amazon.com/help/operating/policies: “You will include a date/time stamp adjacent to your display of pricing or availability information”
- affiliate-program.amazon.com/help/operating/policies: “You will not make any orders or engage in other transactions of any kind on an Amazon Site”
- affiliate-program.amazon.com/help/operating/policies: “develop or improve large language or multimodal models, machine learning models or related technology”
- affiliate-program.amazon.com/help/operating/policies: “No Agent may access, use, or interact with Program Content unless, at all times, it identifies itself”
- affiliate-program.amazon.com/help/operating/policies: “Not conceal or obfuscate that any access, use, or interactions are from an Agent”
Best Buy Products API, read on October 15, 2026:
- bestbuyapis.github.io/api-documentation: “a simple, REST-based interface for our entire product catalog, past and present”
- bestbuyapis.github.io/api-documentation: “It's easy. Just visit GET API Key and sign up with your email address.”
- bestbuyapis.github.io/api-documentation: “URL to BESTBUY.COM with item in cart”
- bestbuyapis.github.io/api-documentation: “URL to BESTBUY.COM product detail page”
- bestbuyapis.github.io/api-documentation: “Current item selling price”
- developer.bestbuy.com/legal: “To use the Service, you must create a developer account by submitting a completed registration form”
- developer.bestbuy.com/legal: “Best Buy limits the number of calls that can be made using each assigned API Key during a given time period.”
- developer.bestbuy.com/legal: “store or cache any Content except on a temporary basis not to exceed seventy-two (72) hours”
- developer.bestbuy.com/legal: “You must clearly and conspicuously attribute the source of all Content as received from Best Buy.”
- developer.bestbuy.com/legal: “Use of the Commerce Gateway API requires our pre-approval and may not be available to everyone.”