Medusa.js Commerce
We build headless stores on Medusa.js. You own the code, with no revenue share and no lock-in.
Vendor lock-in on closed SaaS platforms slowing every release.
Feature delivery bottlenecked by the platform roadmap, not your team.
Commerce data trapped behind proprietary APIs — can't feed your AI workflows.
The stack is yours. So is the roadmap.
Zero platform tax
No revenue share, no percentage of GMV. You pay for infrastructure and your payment provider — nothing else. At scale, that's the line item that funds the whole build.
You own the entire stack
Database, schema, backups, business logic — all of it lives in your infrastructure. Medusa is MIT-licensed and self-hosted, so nothing about your commerce layer depends on a vendor's roadmap or uptime.
Composable by design
Cart, orders, inventory, fulfillment, pricing — every capability is a separate module exposed through APIs. Extend or replace one piece without touching the rest, instead of stacking third-party apps on a closed platform.
Built for AI and agent-driven commerce
Modular TypeScript architecture and exposed business logic make Medusa a natural fit for agent frameworks. It ships an MCP server for direct LLM tool calling — access most closed platforms rate-limit or wall off entirely.
What you get
Full headless build on Medusa.js: Next.js storefront, modular backend, payments, search, ERP and ESP integrations.
AI engineered into the commerce core — pricing engines, personalisation, replenishment agents that ship to production.
Full code ownership. Clean migration off your current platform with zero lock-in.
A team that hands the keys over when we're done. Your devs pick it up on day one.
Is Medusa the right call?
Medusa is the right call when:
You're past the point where a platform's cut — percentage fees, tier upgrades, usage overages — is real money, not a rounding error.
Your business model breaks what turnkey platforms assume — complex B2B pricing, multi-vendor marketplaces, region-specific tax logic.
You need a dedicated content layer (Next.js + Payload/Sanity + Medusa) instead of theming inside a closed system.
You have — or we provide — a backend engineer who owns deployment. Medusa offers far more flexibility for connecting commerce with ERP systems or custom CRM workflows, but that flexibility comes with more technical responsibility.
Stay on a SaaS platform if:
You need to launch in weeks, have no dedicated dev resource, and want hosting, PCI compliance, and a ready-made app ecosystem handled for you out of the box.
Medusa.js development questions
What is Medusa.js?
Medusa.js is an open-source (MIT-licensed) commerce platform written in TypeScript on Node.js. It gives you the store backend: products, cart, orders, inventory, pricing and regions as separate modules exposed through APIs. You build the frontend however you like, most often in Next.js, and host it yourself or on Medusa Cloud.
How long does a Medusa.js build take?
Typically 9–15 weeks with us: a one-week audit, 2–4 weeks building the backend and storefront alongside your live store, 6–10 weeks of data migration and integrations, then a go-live weekend. ERP integrations and custom pricing logic take the most time.
How much does Medusa.js development cost?
The license is free. You pay for the build, infrastructure and ongoing development. Build cost depends mostly on the number of integrations (ERP, PIM, payments, logistics), the scope of data migration, B2B logic and frontend complexity. Hosting is your own servers or Medusa Cloud (plans from $29 a month). We give you a firm estimate after the one-week audit, before you commit to anything else.
Medusa.js or Shopify?
Choose Shopify if you want to launch in weeks, have no in-house dev team and ready-made apps cover your needs. Medusa makes sense when your logic doesn't fit a platform template (B2B, marketplace, multiple regions and currencies), you need deep integrations, or revenue-based fees have become a major budget line. We do both: we're also a Shopify Premier Partner, so our advice isn't tied to one platform.
Can you migrate a store from Magento, WooCommerce or Shopify?
Yes. We move the catalog, customers and order history, and rebuild the integrations. The new store is built in parallel, so sales don't stop. The audit already shows what won't transfer 1:1 (e.g. apps with no equivalent) and how to handle it.
Is Medusa.js a good fit for B2B?
Yes, it's one of the most common reasons to choose Medusa. It has price lists and customer groups built in, and the official B2B starter adds company accounts, spending limits, order approvals and quotes. The rest (e.g. customer-specific discounts from your ERP) we build as custom modules.
Who looks after the store after launch?
We hand over the code, documentation and infrastructure access, so your team can take over from day one. If you prefer, we stay on a maintenance retainer and keep developing the store.
What that looks like next to a SaaS platform
Shopify, BigCommerce, Salesforce Commerce Cloud — most SaaS platforms share the same trade: a subscription plus a cut of your revenue for convenience. Example at $1M annual GMV on Shopify Advanced with an external payment gateway. The payment processor's own fees (e.g. Stripe) are similar on both sides, so they're left out.
~$9,600/year
~$3,000/year infra + a few engineering hours/month
Our process
1 week. Export data from your current platform, map existing apps and integrations to Medusa modules, identify what doesn't transfer 1:1.
2–4 weeks. Medusa backend and Next.js storefront built alongside your live store, without interrupting sales.
6–10 weeks. Migrate catalog, customers, and order history; wire up payment and fulfillment providers.
DNS switch, monitoring, on-call. Then we hand over.
Own your stack. Ship at AI speed.
One week gets you a full audit — your current platform mapped to Medusa modules, and a clear picture of what migrates 1:1 before you commit to anything.
Selected work in this service
Scholl, View Case Study
A comprehensive redesign of the e-commerce store based on Shopify Plus and implementation in dozens of markets.
MOWI, View Case Study
Website design and development for the world's largest salmon farming brand, as part of its expansion into the highly competitive US market.