There are two hard ways to start a marketplace. Mercur is the third – the easy one.
- Rent a SaaS marketplace — Fast to start, but you share revenue for as long as you sell.
- Build it all yourself — Full control, and years of development before the first order.
- Run Mercur — The engine already built, running on your own infrastructure.
The marketplace and the store are the same system
Running commerce and marketplace as two systems is a tax you pay forever – two data models, two deployments, two sets of edge cases. In Mercur they are one unified platform, not a layer bolted onto another.
Everything a new marketplace needs on day one
- Storefront & Catalog — A multi-vendor catalog and storefront from the start.
- Vendors & Offers — Onboarding, and competing offers on one product.
- Split carts & Orders — Per-vendor orders from a single customer payment.
- Payouts & Settlement — Commission, balances and vendor payouts.
- Returns & Disputes — Per-line RMAs, claims and cases.
- API-first & Headless — Any frontend you want on top.
What does building with Mercur get you?
- Zero GMV fees — The license is your only platform cost.
- Own the source — Open source, full source for licensees – an engine you can read, audit, and extend.
- Your infrastructure — Any cloud, on-premise, or air-gapped.
- Built on the most popular framework — Standard JavaScript and TypeScript, so any web developer can work on it.
Start on open source. Scale on enterprise.
Mercur Open Source (MIT)
- MIT-licensed and public
- Complete standalone marketplace engine
- See the code, architecture, and quality
Mercur Enterprise
- Financial control & settlement
- Compliance & data residency
- Trust, security & audit
- Integrations to your stack
- Enterprise support & SLA
Let’s build your marketplace
Start with discovery, agree the architecture, ship an MVP, and roll out with the team that built Mercur.