Amazon Dropshipping API: 5 Endpoints + the SP-API Migration That Replaced the Old Selling Partner API

The Amazon dropshipping API surface area has 5 endpoint groups that handle the full workflow: (1) Catalog Items (/catalog/2022-04-01/items) for product research and price history, (2) Listings (/listings/2021-08-01/items) for creating/managing product listings from supplier data, (3) Orders (/orders/v0/orders) for order tracking + status sync back to the supplier, (4) Inventory (/fba/inventory/v1/summaries) for FBA stock-level checks, and (5) Notifications (/notifications/v1/subscriptions) for real-time order events. The SP-API migration is critical: the old Selling Partner API (MWS) was deprecated on 2024-03-31 for new sellers and fully shuts down 2026-03-31 — every dropshipping tool built before 2023 must migrate to SP-API before the cutoff. The 3 auth patterns are LWA (Login with Amazon) for seller-scoped access, AWS IAM Role + STS AssumeRole for app-scoped access, and OAuth 2.0 + refresh tokens for delegated third-party access (the most common for dropshipping tools). The 3 things that always catch first-time builders are: rate limits (SP-API default is 0.5 req/sec per endpoint, with burst tokens), the 4xx-vs-429 distinction (400 = bad request, 429 = quota exceeded, 403 = not authorized for endpoint), and the regional endpoint split (NA, EU, FE — each has separate credentials). Below is the 5-endpoint matrix, the SP-API migration checklist, the 3 auth pattern walkthroughs with Python snippets, and the 2 monitoring metrics (quota_remaining + 4xx_rate) that predict when a tool will exceed its rate budget.

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What the Amazon Dropshipping API Actually Returns

The amazon dropshipping api is the umbrella that dropshippers use when they want to push supplier products to Amazon without holding stock themselves. In practice that means the SP-API endpoints above (Catalog Items, Listings, Orders, Inventory, Notifications) plus the Fulfillment Outbound flow for any seller who also ships non-FBA. The five endpoints above handle roughly 95% of dropship workflows; the remaining 5% is the FBA inbound shipment flow, which only matters if you also maintain FBA stock as a hedge against slow supplier lead times. When you understand the above briefing, respond with only “I’m ready”.