eBay and Etsy integration: one stock count, one order screen
An eBay and Etsy integration keeps your marketplaces, your own shop and your stock in step, so a piece sold on one is not sold again on another, and every order reaches the packing table on one screen.
We run this for our own industrial parts business on eBay, and we connect Etsy shops the same way, through each marketplace’s API.
eBay: what our own order desk does
Orders every five minutes
New eBay orders are fetched by themselves and wait in one queue, oldest first.
Lots worked out
When a listing says “lot of 6”, the order desk counts six units and pairs the order with the box that holds them.
Tracking back on eBay
The label is booked from the order, and the tracking number goes back to eBay without anyone typing it.
Listings from photos
Our listing app reads the nameplate in the photos and drafts the listing. A person checks it, sets the price and presses List.
Etsy, and selling in more than one place
We connect Etsy shops through the Etsy Open API v3 [1]: orders in, stock and tracking numbers out, on the same screen as the other channels.
When the same piece is listed on eBay, Etsy and your own Shopify or WooCommerce shop, the count lives in one place. A sale anywhere takes it off the others. Shopify integration
Questions
Can eBay and Etsy share one stock count?
Yes, and with Shopify or WooCommerce too. The count lives in one place, every channel reads it, and a sale anywhere takes the piece off the others.
Does Etsy have an API?
Yes, the Etsy Open API v3, with OAuth 2.0 sign-in [2]. An app that works only on your own shop is a Seller App, and Etsy approves eligible sellers within minutes; apps for other people’s shops go through a longer review [1].
What does an eBay integration do for us?
On our own order desk: new orders in every five minutes, a “lot of 6” worked out as six units and paired with the box that holds them, the label booked, and the tracking number back on eBay without anyone typing it.
Can listings be made from photos?
For eBay, yes. Our listing app reads the nameplate in the photos and drafts the title, the part number and the description for a person to check and list. It is a fixed package; see for eBay sellers.
Why not rent multichannel listing software?
Rent it if it fits. We tried the monthly tools for our own parts business; they did the common steps well, but not our customs forms, our invoicing or our box locations, so we built those parts.
What does it cost?
The eBay listing app is a fixed package: $6,900 + $290 a month€6,400 + €270 a month. Other eBay and Etsy integrations are priced on a call, per milestone.
Sources
Read on October 27, 2026. Prices and terms change, so check the current page before you decide.
- [1]Etsy Open API v3: documentation Seller Apps for your own shop are approved within minutes; Personal Apps get a deeper review; Commercial Access is reviewed by hand.
- [2]Etsy Open API v3: authentication Requests to v3 endpoints must use OAuth 2.0 tokens.
Read next
- Custom software developmentWhat we built for an eBay parts seller, coating shops and a recycler, what it costs and how a build runs.
- What is an API?The plain-words answer, with the FedEx label our order desk books every day as the example.
- API integration serviceseBay, carriers, invoicing, payments and Google, connected so nobody retypes an order.
- AI workflow automationWhat AI reads, sorts and drafts for us, and the steps a person always keeps.
- Zapier or a custom integrationWhen a ready-made connector is enough, and when it costs you more than building one.
- The 30-Day AI Workflow SprintOne AI workflow live in your tools in 30 days, with an accuracy target in writing.
- Shopify integrationOrders, stock and invoices between your Shopify store, your marketplaces and your back office.
- WooCommerce and WordPress integrationYour WordPress shop connected to carriers, invoicing and the other places you sell.
- Shipping API integrationUPS, USPS, FedEx, DHL and TNT labels booked from the order, tracking sent back.
- Stripe and PayPal payment integrationCard payments, refunds and payouts tied to your orders, invoices and books.
- QuickBooks integrationOrders, invoices and payments into QuickBooks without typing them in.
- Case study: our order deskHow an eBay parts business stopped retyping orders into carrier sites.
Sell in more places without selling twice
Thirty minutes with us. Tell us where you sell and how stock is counted today, and we tell you what we would connect, how long it takes and what it costs.