Kaizen Seller Logo
All integrations
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Sell on Amazon

Maximize your presence and selling power on the world's largest online marketplace.

More control, more opportunities

Connect your Amazon Seller Central account in minutes. Kaizen Seller publishes listings, syncs inventory, downloads orders, and ships direct-to-consumer — all from one workspace.

AI-generated listings

Create new ASINs from photos and a part number — titles, bullets, descriptions, and item specifics in seconds.

Real-time inventory sync

Quantities sync to Amazon every 15 minutes to prevent oversells across all channels.

Order download

New Amazon orders pull in automatically and unify with eBay, BigCommerce, and Google Shopping orders.

Direct-to-consumer shipping

Print USPS, UPS, and FedEx labels through ShipStation directly from the Amazon order screen.

Tracking auto-upload

Tracking numbers post back to Amazon within minutes of label creation — no manual confirmation.

ASIN matching

Catalog API lookups by UPC, EAN, or MPN prevent duplicate ASINs and speed up listing creation.

Settlement & reports

Pull settlement, inventory, and FBA reports for reconciliation and accounting export.

Smart pricing

Track competitor pricing and push price updates to stay competitive in the Buy Box.

FBA inventory

View FBA stock levels and route orders to merchant-fulfilled or FBA based on your rules.

How Direct-to-Consumer shipping works

From order to doorstep — fully automated.

  1. 01
    Order in
    Buyer orders on Amazon. We pull it instantly via SQS.
  2. 02
    Validate
    Address verified through ShipStation.
  3. 03
    Pick & pack
    Order shows up in your unified workflow.
  4. 04
    Label
    USPS, UPS, or FedEx label printed in one click.
  5. 05
    Tracking
    Tracking auto-uploads back to Amazon.

Built on official Amazon APIs

Orders · Feeds · Catalog Items · Listings Items · Fulfillment · Notifications · Reports · Shipping

US sellers on Amazon.com (ATVPDKIKX0DER).

Security & data handling

What we access, why, and how we protect it.

API scopes & permissions

Scope / RolePurpose
Product ListingCreate and manage Amazon catalog listings.
Inventory & Order TrackingRead inventory, update quantities, read order details.
PricingRead competitive pricing; submit price updates.
Amazon FulfillmentRead FBA stock; submit MFN shipment confirmations.
Direct-to-Consumer Shipping (Restricted)Buyer name, address, and contact info needed to ship orders via USPS, UPS, and FedEx.
NotificationsReal-time SQS events for new orders and inventory.
ReportsSettlement, inventory, and FBA reports.

Data handling

  • Buyer PII is used only to fulfill the order. Never sold, never used for marketing.
  • Encrypted at rest with AES-256-GCM. Keys in Google Secret Manager.
  • TLS 1.2+ in transit between Amazon, Kaizen Seller, and ShipStation.
  • PII purged 30 days after shipment. Audit logs retained 13 months.
  • No PII in logs — logging middleware redacts buyer fields before write.
  • Access restricted to the operator via Google SSO + MFA. Per-user Firestore isolation.
  • Security incidents reported to security@amazon.com within 24 hours of detection.
  • Full details in our Privacy Policy.

Ready to put Amazon on autopilot?

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Kaizen Seller is an independent software product and is not affiliated with, endorsed by, or sponsored by Amazon. All Amazon trademarks are the property of their respective owners.