Arxos is an Account Managementservice for ecommerce sellers. It does the daily back-office work of a brand: answering customer questions, keeping stock and purchase orders ahead, and counting the real margin after fees. For sellers on Amazon, Arxos connects to Seller Central through the Amazon Selling Partner API (SP-API) with read-only access, so Amazon orders, FBA inventory and Amazon's fees sit next to the seller's own store in one place.
Where the Amazon connection stands:it runs today on our own brand's Seller Central account. It opens to other sellers once Amazon approves our public listing; until then the Amazon connection in Arxos shows as Coming soon.
What Arxos does with Amazon data
Every Amazon feature below reads data. None of them writes to Seller Central, and none of them moves money.
Orders
Amazon orders, read through the Orders API, sit next to the seller's store orders, so daily sales are counted in one place. When a buyer writes in about an Amazon order, the support case links straight to that order in Seller Central.
FBA inventory
FBA inventory per SKU, read through the FBA Inventory API, is shown next to the seller's own warehouse stock in the same inventory view, so the seller sees every unit they own without opening two systems.
Fees and margin
Amazon's fees, read through the Finances API, are taken off Amazon sales in the seller's profit view as an estimated share (the fee share of recent Amazon sales, applied to each day), so the number the seller reads is what the sale left after Amazon's cut, alongside product cost, shipping labels and card fees from their own store.
Customer messages
Buyer messages that Amazon relays to the seller's email land in Arxos with the rest of the seller's support mail. Arxos sorts them, links the Amazon order, and drafts a reply that keeps to Amazon's messaging rules, for the seller to copy into Seller Central. Arxos never emails an Amazon buyer.
What Arxos never does
- No write access. Arxos does not request write permissions for refunds, pricing, listings, advertising or promotions. Any action that moves money or changes a listing is taken by the seller.
- No account-health actions.Arxos does not modify any account-health setting, dispute any policy violation, or deal with Amazon's appeals process on the seller's behalf.
- No sharing between sellers.One seller's Amazon data is never visible to, or used for, another seller.
What a seller gets
- One place for Amazon and the store. Orders, stock and fees from both channels, side by side.
- The real margin.Amazon's fees come off Amazon sales before the seller reads the number.
- Faster replies. Buyer questions arrive sorted, with the order linked and a reply drafted.
- Nothing moves without the seller. Read-only access, with every money action left to the seller.
Who builds Arxos
Arxos is built by ecommerce operators who run their own brands on it every day. The Amazon connection ran in production against our own brand's Seller Central account before we asked to offer it to anyone else.
Company
- Legal entity: Midfluence LLC, a Delaware limited liability company formed on January 25, 2022 (file number 6591206), which owns and operates the Arxos service.
- Shopify: Arxos installs from Shopify, so a seller can run Amazon and their Shopify store from one operations view.
Technical credentials
- SP-API integration:Login with Amazon (LWA) integration, OAuth 2.0 refresh-token flow, View-only granular permissions across Inventory & Order Tracking, Amazon Fulfillment, Selling Partner Insights, Finance & Accounting, and Advertising (read-only bid, budget, promotion, coupon and discount data, for advertising analytics in development). Two specific financial reports, the Sales Tax Report and Seller Fee Invoices, are accessed at the Edit tier because Amazon's permission model offers no View tier on these PII-restricted reports; Arxos performs read operations only on this data, with no tax filings, fee disputes, or write actions of any kind. AWD permission requested for the forward roadmap.
- Stack: Next.js and Node.js with Postgres (Supabase), hosted on Vercel. Authentication via Clerk. Seller credentials are encrypted at rest with AES-256-GCM.
- Isolation:Every database query is scoped to the seller's own business. Connection tokens, messages, orders and inventory data never cross between customer accounts. See our Privacy Policy for the full data-handling description.
- Incident response: Security issues are routed to security@joinarxos.com and acknowledged within one business day. Verified incidents are scoped, contained, and disclosed to affected sellers within 72 hours of confirmation, and to Amazon within 24 hours of detection when Amazon data is involved (Privacy Policy, section 7).
Why sellers need this
Brands that start on their own store hit the same wall when they add Amazon: two sets of buyer messages, two sets of stock, two fee structures and two reporting screens. Arxos puts both channels in one operations view, so running Amazon does not mean hiring a person just to reconcile it.
How to get started
Sellers connect Seller Central from the Integrations page in Arxos once Amazon's public-app approval is in place. Until then, sellers who want the Amazon connection first can email support@joinarxos.com to be added to the list.
Legal entity
The Arxos service is provided by Midfluence LLC, a Delaware limited liability company (file number 6591206, registered office: 221 N. Broad St, Suite 3A, Middletown, DE 19709). See our About page for the full company information.