Developer DNA

Developers love to work with Geins

Geins is API‑first and headless by default—so you design the experience, and we power the commerce logic behind it. The platform gives you a clean domain model, predictable APIs, and multi‑market primitives that behave consistently as you scale.

Use your favorite frontend framework

We're impressed by the whole Geins suite. Having so many features from the start and being able to scale—it's incredibly valuable. The flexibility, especially with the API-first approach, allows us to adapt our tech stack as needed, which is a huge advantage.

Leo Brogren

CTO, Köttfabriken

Build fast, ship safely, and keep full control

Ship fast without lock‑in. Clean domain model, predictable APIs, and multi‑market primitives that scale with you.

app.ts

import { GeinsCore } from '@geins/core';
import { GeinsOMS } from '@geins/oms';

const geinsCore = new GeinsCore(geinsSettings);
const geinsOMS = new GeinsOMS(geinsCore);

const cart = await geinsOMS.cart.get();
const token = await geinsOMS.createCheckoutToken({
  cartId: cart.id
});

window.open(`https://checkout.geins.services/${token}`);

Get from zero to market quickly

Documentation that respects your time

Documentation Model Context Protocol (MCP) server

Make full use of AI agents by using the MCP server to get implementation done for you.

Interactive API reference

Login to your account and browse the API reference with placeholders for keys and secrets replaced with real keys for your account.

In repository documentation

Documentation available in open source repositories.

Geins doesn’t ask you to fight the platform to build what you want

No need for one‑off hacks. Products, variants, attributes, prices, availability, categories, brands, and relationships form a coherent model that maps well to real storefronts. Channels and Markets are first‑class citizens: currency, VAT, languages, and availability rules flow through pricing, promotions, canonical URLs and feeds. The APIs are versioned and strongly defined, with error formats and pagination that stay the same across endpoints, so you don’t lose time on glue code.

Run your application on any backend

Commerce logic comes ready to use

Out‑of‑the‑box commerce logic: variants, promotions, orders/returns, inventory, segmentation, feeds, and events.

Promotions engine

Stacking, priorities, thresholds, rounding, and 30‑day lowest price compliance.

Orders & returns

Capture on fulfillment by default; explicit refunds and returns for clear operations.

Inventory modes

In‑stock, oversellable, or static—backed by a transaction log for audits.

Content segmentation

Target by channel, market, customer group, and catalog with rule‑driven content.

Variant modeling

Multiple SKUs per product plus Variant Groups across products for clean PLPs/PDPs.

Markets & channels

Markets and channels for multi-market and multi-channel support.

Cart & checkout

Cart and checkout that get out of the way—and lift conversion.

Webhooks & events

Keep ERP, search, and analytics in sync with event‑driven updates—no polling.

Deploy your application on any cloud

From first request to first market

Getting live should feel like a progression, not a maze. Start by modeling products and attributes, define channels and their markets, and localize the content that matters. Publish a promotion and see it flow into listings, badges, and feeds. Place an order, fulfill items, and watch payments capture automatically.

Wire the webhooks you care about and connect external IDs so your ERP, WMS, or analytics stay aligned. When it’s time to expand, add a market—not a new codebase.

Remix to get the best custom experience

Geins is headless and unopinionated about your presentation layer. Use the stack you like, keep your design system, and compose the storefront you want. The examples directory includes starters and reference implementations across popular stacks, but you’re never locked to one approach. Geins handles the commerce primitives—catalog, pricing, promotions, orders, inventory, content—so you can focus on the parts only you can build.

Why developers build on Geins

Leo Brogren

CTO, Köttfabriken

What we love about Geins is the API itself: fast, reliable, and intuitive, with clear docs that let us move from idea to implementation in no time. The team is fast, professional, and adaptable, and always open to evolving the API to fit real-world needs.

Johnny Backlund

Full Stack Developer, Flatmate

By creating headless APIs, SDKs, well-written documentation, and service-minded customer support, Geins enables us to move quicker and focus on what really matters.

Kevin Fitzpatrick

E-commerce Lead, Umain

We love the fast APIs, clear docs, solid tooling, and a team that’s quick to improve. We get everything we need out of the box - plus the freedom to extend and fully make it our own.

Alexander Wärendh

Lead Developer, Gawa Studio

Geins tech stack and API-first approach ensure effortless integration with customers' existing software ecosystems - usually a headache, but with Geins, it's a breeze.

John Gunnarsson

Chief Technology Officer, Cypoint

Geins has removed the operational drag from our builds. Reliable APIs, great developer experience, and responsive support let our team move faster and focus on innovation instead of maintenance.

Lovisa Hallgren

Tech Lead, Level Nine

Geins has removed the operational drag from our builds. Reliable APIs, great developer experience, and responsive support let our team move faster and focus on innovation instead of maintenance.

Max Wiggedal

Full Stack Developer, Cypoint

The APIs, docs, SDK - all super clear and well put together. You can tell it’s built by devs for devs.

Per Porserot

Senior Frontend Developer, NoA Ignite

Building experiences with Geins was easy. We're able to focus on the customer experience and Geins took care of all the boring stuff.

Patrik Nyfeldt

Frontend Developer, Umain

Geins offers a unique combination of tools, all integrated into a single platform. By uniting PIM, CMS, CRM, and WMS in one comprehensive commerce suite, Geins truly stands out in the market. Coupled with their high-performance, API-based architecture, it was an obvious choice for us to partner with Geins.

Johan Gunnarsson

CEO, Level Nine

You build the experience, we power the logic

Build with predictable APIs and a clean domain model. Launch faster, scale across markets, and keep full control.

Explore API docs Try Geins for free