# Services from asin402.com on Zero

> asin402.com serves 16 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/asin402.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/asin402.com/health.json

## Services

- [ASIN402 Product Price & Sales Data by ASIN](https://www.zero.xyz/c/asin402-product-price-sales-data-by-asin-7e400d8b/llms.txt): $0.005/call via x402. Returns current Amazon prices (buy box, new, used), 30/90/180-day price history averages, estimated monthly sales, sales rank, rating, review count, and product metadata for a single ASIN across 11 Amazon marketplaces.
- [ASIN402 Amazon Product Search](https://www.zero.xyz/c/asin402-amazon-product-search-27cfe4c3/llms.txt): $0.005/call via x402. Search Amazon by keyword across 11 marketplaces, returning up to 10 full product records per page with current prices, price history, sales rank, and estimated monthly sales.
- [ASIN402 Amazon Best Sellers List](https://www.zero.xyz/c/asin402-amazon-best-sellers-list-48383d5c/llms.txt): $0.007/call via x402. Returns an ordered list of Amazon ASINs ranked by sales in any category, supporting current rank, 30/90/180-day average, or historical monthly rank, for up to 500,000 ASINs.
- [ASIN402 FBA Profit Calculator](https://www.zero.xyz/c/asin402-fba-profit-calculator-64d38fbf/llms.txt): $0.05/call via x402. Calculates Amazon FBA profitability for a given ASIN and unit cost, returning referral fee, FBA fulfillment fee, net profit, margin, ROI, break-even cost, and max landed cost for 30% ROI using the live buy box price.
- [ASIN402 Deal Check](https://www.zero.xyz/c/asin402-deal-check-83642e4a/llms.txt): $0.02/call via x402. Checks whether an Amazon product's current price is a good deal by comparing it against its 30/90/180-day price history and returning a buy verdict with reasoning.
- [ASIN402 Amazon Product Finder](https://www.zero.xyz/c/asin402-amazon-product-finder-d9529a86/llms.txt): $0.005/call via x402. Filter Amazon's entire catalog by 300+ criteria (price, sales rank, buy box, brand, etc.) and return matching ASINs
- [ASIN402 Cross-Marketplace Price Comparator](https://www.zero.xyz/c/asin402-cross-marketplace-price-comparator-5b56d007/llms.txt): $0.03/call via x402. Compares live prices for a single Amazon ASIN across 11 international marketplaces, returning the cheapest and most expensive markets with USD-converted prices and spread analysis.
- [ASIN402 Category Details](https://www.zero.xyz/c/asin402-category-details-c04bad90/llms.txt): $0.005/call via x402. Returns name, parent, children, product count, and sales-rank thresholds for Amazon category IDs across 11 marketplaces.
- [ASIN402 Amazon Price Drops & Deals Feed](https://www.zero.xyz/c/asin402-amazon-price-drops-deals-feed-280f4b3e/llms.txt): $0.005/call via x402. Returns up to 150 Amazon products whose price recently dropped or sales rank changed, with filters for category, discount, price range, rating, seller type, and lowest-price-ever flags.
- [ASIN402 Product Data & Price History API](https://www.zero.xyz/c/asin402-product-data-price-history-api-5391b291/llms.txt): $0.005/call via x402. Fetches full Amazon product data including complete price history, sales rank history, current prices, buy box, live offers, ratings, monthly sales estimates, and FBA fees for 1–100 ASINs or barcodes per call.
- [ASIN402 Seller Info & Storefront API](https://www.zero.xyz/c/asin402-seller-info-storefront-api-3e26a70f/llms.txt): $0.005/call via x402. Fetches Amazon seller profile data (name, ratings, FBA usage, history) for up to 100 sellers, with optional full storefront ASIN list
- [ASIN402 Barcode to Amazon ASIN Lookup](https://www.zero.xyz/c/asin402-barcode-to-amazon-asin-lookup-8efa403e/llms.txt): $0.005/call via x402. Converts UPC, EAN, GTIN, or ISBN-13 barcodes into Amazon product listings with ASIN, pricing, sales rank, and estimated monthly sales across 11 marketplaces.
- [ASIN402 Sell Score](https://www.zero.xyz/c/asin402-sell-score-85bda5e1/llms.txt): $0.1/call via x402. Scores an Amazon ASIN 0-100 for selling viability based on demand, competition, price stability, review moat, and Amazon seller presence
- [ASIN402 Category Search](https://www.zero.xyz/c/asin402-category-search-184d0912/llms.txt): $0.005/call via x402. Search Amazon categories by keyword to retrieve category IDs needed for bestseller lists, product finders, and deals feeds.
- [ASIN402 Top-Rated Amazon Sellers](https://www.zero.xyz/c/asin402-top-rated-amazon-sellers-33400a7e/llms.txt): $0.007/call via x402. Returns an ordered list of Amazon seller IDs ranked by number of ratings in a given marketplace (up to 100,000 sellers).
- [ASIN402 Amazon ASIN Price & Stock Watcher](https://www.zero.xyz/c/asin402-amazon-asin-price-stock-watcher-2940eca4/llms.txt): $0.168/call via x402. Sets up a scheduled monitoring job that checks 1-50 Amazon ASINs for price, buy box, and stock changes at a configured interval, returning a watch key to poll for change events.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

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