eBay Browse API vs Rainforest API for AI agents
eBay Browse API is eBay's Buy API for searching live eBay listings by keyword or category and fetching item details. Rainforest API is a paid third-party API that returns Amazon search, product, offer and review data in real time.
The short answer
- eBay Browse API: Approved eBay partners who want live new and used eBay listings with affiliate tracking.
- Rainforest API: Getting Amazon product, price and review data without needing Amazon Associates sales.
Side by side
| eBay Browse API | Rainforest API | |
|---|---|---|
| Searches | Live eBay listings by keyword and category (plus image search in some markets), and item details by item ID. | Amazon search results by keyword or category, product pages by ASIN, deals and offers, and reviews. |
| Returns | A subset of item details per search hit (more with the EXTENDED field group); full details come from getItem using the item ID. | Ranked products with ASINs, title and price for searches; full product page data (bullets, descriptions, attributes, variations, category tree) by ASIN. |
| Before the first call | An eBay developer account (sandbox is open to anyone); production use of the Buy APIs is for eBay partners and needs an application through the eBay Partner Network, approved by business model. | A Traject Data account and API key. |
| Free | Not stated on its pages | A free trial; the pricing page does not say how many requests it includes. |
| Paid | Not stated on its pages | Hobbyist plan $23 a month billed annually for 500 credits a month ($0.06 per extra credit). |
| Acting on a result | Affiliate links through the eBay Partner Network (production apps must implement affiliate tracking); eBay member checkout via the separate checkout_session resource needs extra approval. | Data only; no buy, affiliate or checkout action is described. |
| Coverage | 16 eBay marketplaces: AT, AU, BE, CA, CH, DE, ES, FR, GB, HK, IE, IT, NL, PL, SG and US (image search only in US, DE, UK and AU). | Amazon marketplaces worldwide, including US, UK, DE, FR, CA and IN. |
| 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 eBay Browse API?
An eBay developer account (sandbox is open to anyone); production use of the Buy APIs is for eBay partners and needs an application through the eBay Partner Network, approved by business model.
Is eBay Browse API free?
Its pages listed no free use when we read them on October 15, 2026.
What do I need before I can use Rainforest API?
A Traject Data account and API key.
Is Rainforest API free?
A free trial; the pricing page does not say how many requests it includes.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
eBay Browse API, read on October 15, 2026:
- developer.ebay.com/api-docs/buy/static/api-browse.html: “Using the Browse API, you can create a rich selection of items for your buyers to browse with keyword and category searches.”
- developer.ebay.com/api-docs/buy/static/api-browse.html: “For each item found, a subset of the item details is returned.”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “The use of eBay’s Buy APIs in production is intended for eBay partners only.”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “You must apply for production access through the eBay Partner Network.”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “Acceptance of applications is based on the proposed business model”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “Application must implement affiliate tracking details (needed for revenue share capability)”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “To use the checkout_session resource, which supports eBay member checkout, you need approval.”
Rainforest API, read on October 15, 2026:
- trajectdata.com/ecommerce/rainforest-api: “Search by keyword or category and return ranked products with ASINs”
- trajectdata.com/ecommerce/rainforest-api: “Pull complete product page data by ASIN: titles, bullets, descriptions, attributes, variations, category tree, and A+ content.”
- trajectdata.com/ecommerce/rainforest-api: “We support all major Amazon marketplaces including US, UK, DE, FR, CA, IN, and more.”
- docs.trajectdata.com/rainforestapi: “The Product Data API allows you to retrieve data from any Amazon domain worldwide in real-time.”
- trajectdata.com/ecommerce/rainforest-api/pricing: “Absolutely! Start a free trial to see results instantly.”
- trajectdata.com/ecommerce/rainforest-api/pricing: “$23/month ... Billed Annually”
- trajectdata.com/ecommerce/rainforest-api/pricing: “$0.06 per extra credit”