mercurjs

    mercurjs/mercur

    The complete open source platform to run your entire marketplace. Storefront, vendor panel, admin console, and integrations in one enterprise-grade platform you own.

    backend
    b2b-marketplace
    composable-commerce
    ecommerce
    enterprise
    headless-commerce
    TypeScript
    MIT
    1.9K stars
    473 forks
    1.9K GitHub watchers
    Updated Oct 29, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    5 releases in the last 90 days, the latest 21 days ago, with 14 contributors on GitHub.

    Gained 21% more stars in the last 90 days than in the 90 days before.

    Use Cases & Benefits

    • Provides a fully open source, enterprise-grade marketplace platform including storefront, vendor panel, admin console, and integrations.
    • Enables full ownership and customization of marketplaces without vendor lock-in or transaction fees, combining SaaS simplicity with open source freedom.
    • Use for building custom B2C marketplaces with modern UX and multi-vendor support using a ready-to-go storefront.
    • Use for creating B2B marketplaces with specialized workflows and enterprise-grade features tailored to complex business models.
    • Use for integrating payment and communication services like Stripe and Resend within a self-hosted marketplace infrastructure.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    MIT

    Permissive: commercial use, modification and redistribution are allowed with attribution.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    Mercur is the first truly limitless open source marketplace platform that combines the simplicity of SaaS with the freedom of open source. Built on MedusaJS, it empowers businesses to create custom marketplaces without choosing between ownership and ease of use.

    Mercur is a platform to start, customize, manage, and scale your marketplace for every business model with a modern technology stack.

    After months of development, testing, and close collaboration with early adopters, we’re excited to announce the official release of Mercur 1.0 - the first truly limitless marketplace platform. Version 1.0 is fully open source and ready to be self-hosted, giving you full control over infrastructure, customizations, and data.

    With this version, Mercur is production-ready for B2C marketplaces. The first complete version includes a vendor system, admin panel, and a fully built B2C Storefront. Read more in official release announcement

    Excerpt from the mercurjs/mercur README on GitHub (MIT license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Forks

    473+55

    Open issues

    27+0

    Compared with peers in Backend

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

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