ArbiKey lists to eBay, syncs your orders and watches supplier stock — on our servers, not your browser. Then works out your real net profit from that item's exact eBay category fee, not a flat percentage.
Change the two numbers. Everything below recalculates with your item’s real eBay category fee — the same engine that runs inside ArbiKey.
A flat percentage is the mistake. eBay charges by category, and the gap between 3% and 14.95% is the whole margin.
Shipping, VAT and FX use this example’s figures. Inside ArbiKey they come from your own settings and the European Central Bank’s rate for the hour the order landed.
Every figure above comes from the same place your money does: the exact eBay category fee for that item, the ad rate you actually set, the European Central Bank’s rate for the hour the order landed — and what you really paid your supplier.
No card. 30 products on the free plan, for as long as you want them.
Between the price on your listing and the money in your account, three things quietly take a cut. Most resellers only ever measure the first one.
Final value fee, plus a fixed charge per order, plus whatever you spend on promoted listings. It comes off the top, before you see a cent.
Shipping, packaging, VAT, returns and refunds. Individually small. Collectively, the difference between a good month and a flat one.
You buy in one currency and get paid in another. The exchange rate moved between listing and payout — and nobody told you.
Most resellers price on instinct. Instinct is very good at spotting a deal, and very bad at compound percentages.
ArbiKey does the second part.Everything is built around a single question: what did this actually make me?
Net profit, ROI, category performance and monthly trend, on one screen. Not revenue — profit. You know where you stand before your coffee is cold.
Each order recorded with its true profit — fee, shipping, tax, supply cost, all deducted. Returns and refunds land here too, so a bad week can't hide inside a good month.
Supply cost, eBay price, margin and stock for every item, across every store. The winners rise. The quiet losers stop hiding.
The breakdown from the top of this page, as a standalone tool. Enter a source cost and a target margin; it hands you the price you need to list at. Or tells you to walk away.
Run more than one eBay account? Keep them apart. Separate catalogues, separate books, one login — and a combined view when you want the whole picture.
Drop in the Amazon cost — or import your whole catalogue from a CSV.
30 secondsFees, shipping, VAT and today’s exchange rate applied. Break-even, before you buy.
Before you spendPrice to a margin you chose, not a number that felt about right.
One click to eBayEvery sale, return and expense logged. The month adds up on its own.
Runs without youYour selling account took years of feedback to build and can be taken away in an afternoon. Every shortcut below would have been easy to ship. Each one hands that account to a policy team. We left them out — and that is the feature.
None of this is a gap we’re working around. It is the shape of the product. ArbiKey is built to survive an eBay policy update — because the day one lands, the tool that automated the shortcut is the one that takes your account with it.
Start free. Solo is $9.99 a month; Seller, where most sellers land, is $22.99. eBay's fee on a single order is about the same — the difference is that we tell you about it.
See the truth on 30 products. No card, no clock, no catch.
Free forever. No card.
Start freeClose the spreadsheet. Track 150 products the right way.
$99.99/yr — 2 months free
Start with SoloWhere most ArbiKey sellers land — because this is where the money is.
$229.99/yr — 2 months free
Go SellerNo limits. Do not let the numbers be the thing that stops you.
$549.99/yr — 2 months free
Go ScaleIt automates the whole Amazon/AliExpress-to-eBay workflow and tells you what it actually made you. A Chrome extension imports products in one click and can list them straight to eBay. Once you connect your eBay account, orders, fulfillment status and tracking numbers sync automatically. Supply prices and stock are monitored so you catch changes before they cost you. And on every order, ArbiKey applies the real eBay fee, shipping, VAT and today's exchange rate — so the profit figure is the one that survives contact with reality.
For automatic order sync, fulfillment tracking and one-click listing, yes — through eBay's own official login (OAuth), the same method every legitimate eBay tool uses. ArbiKey never sees your eBay password, and you can disconnect in one click at any time. The profit calculator and manual product tracking work even without a connection.
No. ArbiKey connects through eBay's official Developer API, the same program AutoDS, Sellbrite and every compliant eBay tool uses. It does not scrape your account, spoof your login, or do anything eBay's terms of service prohibit. Listing, syncing and tracking all happen through endpoints eBay built for exactly this purpose.
Yes. Import a product from Amazon or AliExpress with the Chrome extension, then list it to eBay in one click — title, price, category, item specifics and images are filled in automatically through eBay's official Listing API. You can also connect your existing eBay listings and let ArbiKey track and price them going forward.
It takes two minutes and costs nothing. Worst case, you learn your margins are fine.
Start free30 products · 1 store · Free forever · Export your data any time
