Amazon Creators API vs Etsy Open 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. Etsy Open API is Etsy's REST API for listings, shops, inventory and orders on the Etsy marketplace.
The short answer
- Amazon Creators API: Affiliate publishers who already earn Amazon Associates sales and want live Amazon catalog data with tracked links.
- Etsy Open API: Searching handmade, vintage and craft listings from independent Etsy sellers.
Side by side
| Amazon Creators API | Etsy Open API | |
|---|---|---|
| Searches | Amazon's product catalog by keyword, filters and browse node (SearchItems), plus item lookup by ASIN, product variations and the category tree. | All active Etsy listings (findAllListingsActive, with keyword search), plus shops and shop listings. |
| Returns | Product details for items, their variations and browse-node (category) information; GetItems takes up to 10 item IDs per call. | Listing records including title, price and the full URL of the listing page on Etsy. |
| 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 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 | 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 listing has its Etsy page URL; buying happens on Etsy. |
| 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. | Not stated on its pages |
| 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. | 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 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 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.
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”
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.”