Add a marketplace to your Magento store
Open your eCommerce to third-party vendors, while Magento stays your core commerce engine. No migration, no replatforming, no vendor lock-in.
Two ways to pay for your move
Replatform onto a marketplace SaaS
Walk away from Magento – the storefront, the PIM, the integrations your team spent years on – rent the engine forever, and give up a share of every sale.
Bolt a marketplace extension onto Magento
An extension handles twenty vendors and a simple commission split. It won't carry a per-category BuyBox, settlement that matches the books, logistics classes, or fifty thousand SKUs – and all of that logic ends up inside your Magento core, competing with commerce on every upgrade.
How Magento and Mercur work together
Magento stays your commerce core. Mercur runs the third-party marketplace beside it, and the two talk over APIs and events. Your store and your marketplace scale on their own.
Why keep marketplace logic out of your Magento core?
| Marketplace logic inside Magento | Marketplace on Mercur, beside Magento |
|---|---|
| Tangled into your commerce core | Isolated, with its own extension points |
| Every Magento upgrade gets heavier | Magento upgrades stay clean |
| Vendors and commerce fight for one roadmap | Vendors scale without touching commerce |
What changes in your store once you add a marketplace?
With Mercur, product pages show competing offers, one checkout covers every vendor, and one customer order becomes a separate order, payment, and payout per vendor.
Onboard a vendor
A configurable application, KYC and KYB through your payment provider, and a hard rule: no verification, no payout.
List the catalog
Bulk import by file or API with a mapping wizard. Listings dedupe by EAN, so three versions of one phone become one product with competing offers.
Win the sale
Offers compete on price and availability. The BuyBox picks the winner and shows every vendor standing behind it.
Take a mixed cart
One order through your Magento checkout, across your own products and third-party offers, with shipping costed per vendor.
Split the order
That single Magento order breaks into a separate order and payment per vendor, on its own.
Fulfill and track
Logistics classes, lead times, lockers, and multi-shipment – with a status flow where only the admin marks an order received.
Settle and pay out
An append-only ledger, real Pending, Payable, and Paid balances, statements, and invoices. The balance a vendor sees is the money they get.
Handle returns and disputes
Per-line returns on your policy window, refunds that match the books, and disputes that hold a payout until they close.
And the part most platforms leave to a spreadsheet: every data export is logged. When someone walks out with the vendor list, there is a record.
How Mercur compares with SaaS marketplace platforms
| SaaS Marketplace | Mercur | |
|---|---|---|
| Core technology | Closed, vendor-only | Open source (MIT), public |
| Enterprise code | Black box | Full source for licensees |
| Integrations | Separate products | Built into one platform |
| Customization | Tickets and workarounds | Your own layer, official extension points |
| Deployment | Vendor cloud only | Any cloud or on-premise |
| Cost model | A percentage of your GMV | Zero GMV fees |
| Exit | Lock-in | You keep what you paid for |
| Developer pool | Certified specialists | Any web developer |
How the connector communicates with Magento
Mercur connects to Magento through a working two-part connector – a module on Magento, an integration on Mercur. Mercur becomes the source of truth for third-party vendors; Magento stays the storefront and checkout your customers already use.
Built for production
Retries with backoff, and a retry job that re-sends any order that did not land.
Idempotency keys, so a retried order is never charged twice.
Signed webhooks and a scheduled delta sync keep both sides current.
Connect is the integration framework, and the Magento connector is a proven pattern in it. Your exact setup – Magento version, PIM, ERP – we wire up per deployment. Connect is part of Mercur Enterprise.
What the integration process looks like
Four steps, with a team that has shipped marketplaces in production.
Questions procurement will ask
Straight answers, in the order they come up.
General questions
See how leading brands build their marketplace
Talk to the team behind Mercur – how it works, how other brands build with it, and where it fits for you.