ASIN402
asin402.com · 16 paid endpoints · listed 2026-10-27
Most-rated Amazon sellers. Ordered list of seller IDs with the most ratings in a marketplace (up to 100,000). 50 credits.
livelast check 5 days ago
100%valid x402 answers, 72 h
$21.79USDC received on Base, 7 days
11distinct payers, 7 days
67.4score (0-100)
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | asin402.com/api/data/category Amazon category details. Name, parent, children, product count and sales-rank thresholds for category IDs. 1 credit per category; parents=1 adds the parent tree | $0.005 | Base |
| GET | asin402.com/api/data/category-search Find Amazon category IDs by name. Search categories by keyword to get the IDs needed by bestsellers, finder and deals. 1 credit. | $0.005 | Base |
| POST | asin402.com/api/data/deals Amazon price drops and deals feed. Products whose price just dropped (or sales rank changed), with filters for category, minimum discount, price range, rating, | $0.005 | Base |
| POST | asin402.com/api/data/finder Amazon Product Finder: filter the whole catalog by 300+ criteria. Find ASINs matching any combination of 300+ filters: price ranges, sales rank, monthly sales, | $0.005 | Base |
| GET | asin402.com/api/data/product Amazon price history API: full product data for 1-100 ASINs. Complete Amazon price history and sales-rank history (full tracked history) plus current prices, bu | $0.005 | Base |
| GET | asin402.com/api/data/search Amazon product search by keyword, with prices and sales. Keyword search like the Amazon search bar, returning up to 10 full products per page with current price | $0.005 | Base |
| GET | asin402.com/api/data/seller Amazon seller information and storefront. Seller name, ratings, FBA usage and history for up to 100 sellers; optionally the seller's full storefront ASIN list. | $0.005 | Base |
| GET | asin402.com/api/lookup Barcode to Amazon ASIN lookup (UPC, EAN, ISBN). Turn barcodes into Amazon listings: give 1-20 UPC, EAN, GTIN or ISBN-13 codes and get the matching ASINs with ti | $0.005 | Base |
| GET | asin402.com/api/product Amazon price + price history + monthly sales by ASIN. One call, one ASIN: current buy box, Amazon, lowest new and used prices PLUS 30/90/180-day price averages | $0.005 | Base |
| GET | asin402.com/api/data/bestsellers Amazon best sellers list for any category, current or historical. Ordered ASIN list of best sellers in a category (up to 500,000 for root categories, 10,000 for | $0.007 | Base |
| GET | asin402.com/api/data/topsellers Most-rated Amazon sellers. Ordered list of seller IDs with the most ratings in a marketplace (up to 100,000). 50 credits. | $0.007 | Base |
| GET | asin402.com/api/deal-check Is this Amazon price a good deal? Buy now or wait. Price check against history for any ASIN: compares today's price with its 30/90/180-day averages and typical | $0.02 | Base |
| GET | asin402.com/api/compare-marketplaces Where is this product cheapest? One ASIN across 11 Amazon marketplaces. Compares one ASIN's live price on Amazon US, UK, DE, FR, IT, ES, JP, CA, IN, MX and BR, | $0.03 | Base |
| GET | asin402.com/api/fba-profit Amazon FBA profit calculator by ASIN. Should I sell this on Amazon FBA? Give an ASIN and your unit cost: returns referral fee, FBA fulfillment fee, net profit, | $0.05 | Base |
| GET | asin402.com/api/sell-score Amazon product research: opportunity score 0-100. Is this product worth selling on Amazon? Scores an ASIN 0-100 from estimated monthly sales (demand), seller co | $0.10 | Base |
| GET | asin402.com/api/watch Watch Amazon ASINs: scheduled price, buy box and stock checks with change alerts. Pay once to monitor 1-50 ASINs every 1h, 3h, 6h, 12h or 24h for 1-30 days. Eac | $0.168 | Base |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| 5 days ago | asin402.com/api/compare-marketplaces | 402 | 528 | valid x402 v2 terms |
Income on Base (7 days)
| Day | Transfers | USDC | |
|---|---|---|---|
| 2026-11-01 | 22 | $0.294 | |
| 2026-10-30 | 2 | $0.008 | |
| 2026-10-29 | 1 | $0.005 | |
| 2026-10-28 | 16 | $0.325 | |
| 2026-10-27 | 52 | $0.755 | |
| 2026-10-26 | 30 | $20.40 |
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x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/asin402.com