Best Buy Products API vs Etsy Open API for AI agents
Best Buy Products API is Best Buy's REST API over its product catalog, past and present, alongside Stores, Categories, Reviews and Recommendations APIs. Etsy Open API is Etsy's REST API for listings, shops, inventory and orders on the Etsy marketplace.
The short answer
- Best Buy Products API: Self-serve access to a large US electronics catalog with live prices and direct add-to-cart links.
- Etsy Open API: Searching handmade, vintage and craft listings from independent Etsy sellers.
Side by side
| Best Buy Products API | Etsy Open API | |
|---|---|---|
| Searches | Best Buy's catalog of over a million products, current and discontinued, with pricing, availability, specifications, descriptions and images. | All active Etsy listings (findAllListingsActive, with keyword search), plus shops and shop listings. |
| Returns | Product records with sale and regular price, a BESTBUY.COM product page URL and an add-to-cart URL, plus specs and images. | Listing records including title, price and the full URL of the listing page on Etsy. |
| Before the first call | A developer account and an API key, requested with an email address and activated from the emailed instructions; calls are limited per key. | A registered app with an API keystring and shared secret; apps used beyond your own shop go through review (Personal App), and wider use needs a separately approved Commercial Access request. Searching active listings needs only the API key, not OAuth. |
| Acting on a result | 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. | Buy link: each listing has its Etsy page URL; buying happens on Etsy. |
| Limits on keeping or showing results | 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. | Not stated on its pages |
| Coverage | BESTBUY.COM (United States); the Stores API covers stores in the US and Puerto Rico. | The Etsy marketplace (sellers worldwide). |
| MCP server | No official server listed | Etsy Dev MCP server at https://mcp.api.etsycloud.com/mcp, but it only teaches an assistant the API docs and schemas; it does not call the Etsy API or return listings. |
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 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.
What do I need before I can use Etsy Open API?
A registered app with an API keystring and shared secret; apps used beyond your own shop go through review (Personal App), and wider use needs a separately approved Commercial Access request. Searching active listings needs only the API key, not OAuth.
Is Etsy Open 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.
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.”
Etsy Open API, read on October 15, 2026:
- developer.etsy.com/documentation: “a REST API that extends support for inventory, sales orders, and shop management on the Etsy platform”
- developer.etsy.com/documentation: “Registering an app creates an Etsy App API keystring and a shared secret.”
- developer.etsy.com/documentation: “Personal Apps go through a deeper review process than Seller Apps.”
- developer.etsy.com/documentation: “You must have an approved Personal App before you can request Commercial Access.”
- etsy.com/openapi/generated/oas/3.0.0.json: “A list of all active listings on Etsy paginated by their creation date.”
- etsy.com/openapi/generated/oas/3.0.0.json: “The full URL to the listing's page on Etsy.”
- developer.etsy.com/documentation/essentials/rate-limits: “You can see your application's current rate limits in the”
- developer.etsy.com/documentation/mcp_server/devmcpserver: “Use the Etsy Dev MCP server to teach your AI assistant how to use the Etsy Open API.”
- developer.etsy.com/documentation/mcp_server/devmcpserver: “It does not call the Etsy API directly.”