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fetchwerk Product Page Comparison
x402
fetchwerk Product Page Comparison is a paid API for AI agents from fetch.halowerk.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Compares two to four product pages side-by-side on identity, price, availability, shipping cost, and rating without converting currencies.
Price / call$0.01
Success—
StatusUnknown
How this service works
Compare two to four product pages by verified identity, listed price, availability, shipping cost and rating without converting currencies.
Output
A structured side-by-side comparison of each submitted product page, including verified product identity (name, identifiers), listed price (in original currency without conversion), availability status, shipping cost, and customer rating. Optionally includes product variants. The response indicates which pages yielded usable product offers and ranks them by primary listed offer.
Example use cases
Find cheapest laptop across retailers
“Compare these four laptop listings for me: https://amazon.com/dp/B0ABC, https://bestbuy.com/site/laptop/123, https://newegg.com/Product/xyz, and https://bhphotovideo.com/c/product/abc — I want to know which has the lowest listed price, who has it in stock, and what the shipping costs are. Use USD as the currency hint.”
Check sneaker availability across stores
“I found these two sneaker pages — https://nike.com/t/air-max-90 and https://adidas.com/us/ultraboost — can you compare their availability, price, and shipping cost? Use USD as the currency hint and also pull in the available variants like sizes.”
Sourcing agent product vetting
“Before I place an order, compare these three supplier product pages: https://supplier1.com/product/bolt-set, https://supplier2.com/bolt-set, and https://supplier3.com/bolts — I need to know each one's listed price, stock status, and shipping fees side by side. Currency hint is EUR.”
Technical details
Endpoint
POSThttps://fetch.halowerk.com/product/compareWhen to prefer
Use this endpoint when you need a structured, side-by-side comparison of two to four specific product pages without any currency conversion — ideal for price intelligence, purchasing decisions, or sourcing workflows where you already have the product URLs and want normalized data across retailers. Prefer this over the single-product endpoint when you need relative ranking or availability comparison across sources in one call.
Side effects
- Fewer than two URLs return a usable product offer — call is not charged but no comparison is returned
- One or more URLs are blocked by robots.txt when respect_robots is true — those pages are excluded from comparison
- URLs do not point to product pages (e.g. category or homepage) — those entries are skipped or flagged
- Product data is missing key fields (e.g. no price listed) — partial results returned with confidence indicators
- Network timeout or page unreachable — affected URLs marked as failed in the response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urls | array | Two to four distinct product-page URLs. At least two must yield a useful product offer or the call is not charged. |
| currency_hint | string | ISO 4217 code used only to disambiguate symbols and decimal notation. No currency conversion is performed. |
| want_variants | boolean | Also collect each page’s variants. The ranking still compares the primary listed offer. |
| respect_robots | boolean | Honour every origin robots.txt. |
Tags
x402
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