Building a marketplace shouldn’t mean choosing between expensive custom development and limiting SaaS platforms. As developers who’ve built multiple marketplaces from scratch, we understand the frustration of working with rigid platforms, outdated tech stacks, and mounting technical debt.

That’s why we created Mercur - an open-source marketplace platform built on top of Medusa 2.0, designed specifically for developers who need both flexibility and robust marketplace functionality out of the box.

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Why Mercur?

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Developer-First Philosophy

Mercur combines the simplicity of a SaaS solution with the freedom of open-source development. You get a solid foundation with essential marketplace features while maintaining complete control over your codebase. No vendor lock-in, no transaction fees, and no limitations on customization.

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Built on Modern Tech Stack

Leveraging Medusa’s 2.0 modern architecture and TypeScript foundation, Mercur provides a developer experience that feels natural and productive. The platform is designed to be extended and customized, whether you’re building a custom B2C or B2B marketplace, simple multi-vendor marketplace, or a complex rental system.

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Freedom to Innovate

We believe that every marketplace needs unique features to compete effectively. With Mercur, you’re not constrained by platform limitations:

• Full source code access
• Extensible plugin architecture
• Custom business logic implementation
• Flexible deployment options
• Complete control over the tech stack

Start building your marketplace with a platform that respects developer freedom while providing the essential building blocks for rapid development. Mercur is where open-source flexibility meets enterprise-grade marketplace functionality.