The OTTO Market API is the official interface of OTTO Market. An OTTO Market interface (often also called an OTTO integration or OTTO connector) uses it to connect your shop or ERP system with OTTO. Product data, prices, stock and orders flow back and forth through it automatically, so you do not have to maintain everything by hand.
What is the OTTO Market API?
OTTO documents the Market API at api.otto.market. It consists of twelve functional interfaces, which can be grouped by task:
- Products, prices and stock: Products, Price-Reductions, Availability.
- Orders and shipping: Orders, Shipments, Shipping Profiles.
- Returns: Returns, ReturnShipments, Returns Warehouse.
- Receipts: Receipts.
- Advertising: Sponsored Product Ads and Sponsored Product Ads Reporting. This part is usually called the OTTO Marketing API.
For testing, OTTO provides a separate test environment (sandbox).
Who uses the API: you or an app
OTTO distinguishes two routes. As a seller you can use the API for your own account. More often, software works for you, such as your ERP or an analytics tool. Its provider is an OTTO service partner and accesses your account on your behalf with your consent.
You give that consent by installing the service partner's app in your OTTO account. The app only gets the areas it has rights for, called scopes at OTTO, for example orders, products or advertising. You do not hand over your password. Before installing, check which areas a piece of software asks for and what it needs them for.
How does an OTTO Market interface work?
You always create your API access in OTTO Partner Connect (OPC), OTTO's seller portal. That is the common starting point, whichever route you choose.
For the actual connection there are three routes:
- Your system's connector: a ready-made plugin or module for your ERP or shop system that handles the integration without any programming. The most common case.
- Tradebyte (TB.One): established middleware for larger ranges and several marketplaces through one account.
- Direct OTTO Market API: a self-built integration, for sellers with their own IT or when no ready-made connector exists.
An interface is not the same as OTTO Partner Connect
An important distinction: OTTO Partner Connect is the portal where you manage your access and can view data. The interface is the automated data connection to it. One is the login, the other is the line.
Which OTTO interface do I need?
That depends on where your master system sits (ERP, shop or channel manager) and whether that system has an OTTO connector. Which route suits which setup is shown in the detailed comparison:
Read on
OTTO Market integration 2026: which connector fits your setup? maps the connector landscape neutrally, sorted by master system, from JTL and Shopware through to systems without a ready-made OTTO connector.
Once the integration is in place, profitkonsole for OTTO shows you your real profit per item, on top of any connector.
Contribution margin per item
Analyse OTTO sales, commissions and returns. Add your purchase prices and your own shipping costs to see the contribution margin.