Real provider support matrix
ArbiSpy advertises only the production lanes below as supported marketplaces in paid plans. Final price and stock must always be verified on the source marketplace.
| Marketplace | Real source | Used for | Freshness/limits |
|---|---|---|---|
| Amazon US | Keepa catalog and price/rank data | Canonical catalog, reference prices, sales rank | Scheduled refresh; not guaranteed real-time |
| eBay US | Official eBay Browse API | Search and verified source offers | Scheduled/API refresh; shipping used only when quoted |
| Walmart US | Authenticated Walmart API integration | Retail reference/source offers | Scheduled/API refresh; US only |
| AliExpress to US | AliExpress affiliate/API integration | Conservative source-offer matching | Scheduled/API refresh; only accepted matches are stored |
Vault can show only opportunities that pass product-match guards and have a known source landed cost. If shipping is known not to be free but its amount is missing, ArbiSpy does not assume zero shipping.