Mercur

Every module a marketplace needs

One suite, 50+ modules, full source for licensees. Every module is extensible at its own seams – nothing here is a black box. The open source core already runs the engine. Enterprise is the same engine – extended, operated, and supported for production.

50+ modulesOpen Source + EnterpriseFull source

Vendors & Onboarding

Vendor Onboarding

Self-serve registration, invite, and member-invite flows with a full account status lifecycle (pending_approval, open, suspended, terminated).

Vendor Account

Business profile, address, professional and payment details, and metadata per seller.

Vendor Team

Many-to-many members and roles, multiple stores per user, and a store switcher.

Vendor Management

An admin seller directory, a premium tier flag, and scheduled store closures.

Seller Scoring

Rolling KPI scores for returns, complaints, and response time, with tiering and auto-suspension.

Seller CRM

Recruit, onboard, and farm lifecycle tracking with checklists, document management, and bulk comms.

Catalog & Offers

Catalog

Categories, collections, tags, product types, and a typed product-attribute catalog with variant-axis and filterable flags.

Master Products

A single shared canonical catalog with a product-seller allowlist link.

Offers

Per-seller SKU, offer-scoped price, offer-scoped inventory, and shipping profile.

Product Change Pipeline

Immutable change-request records with typed actions and a pending, confirmed, declined, canceled or requires-action review lifecycle.

Pricing

Vendor and region price lists, and price preferences.

Inventory

Offer-scoped inventory items, stock locations, and reservations.

Buy Box Engine

Best-offer selection weighting price, delivery time, and seller quality score.

Product Matching & Deduplication

EAN-based matching that collapses duplicate listings onto one master product with clear description authority.

Category Auto-Matching

Vendor taxonomy mapping and EAN-to-category validation with auto-match or error.

AI Data Enrichment

AI attribute extraction, auto-categorization, and feed cleanup from messy vendor data.

Orders & Fulfillment

Checkout

A persistent multi-vendor cart spanning offers from multiple sellers.

Order Splitting & Order Groups

One cart split into a per-seller order plus a parent order group with serial display id and computed totals.

Shipping

Vendor shipping profiles, options, option types, fulfillment sets, and fulfillment providers with region- and tax-aware rate calculation.

Returns

Vendor-defined return reasons, RMAs, claims, and exchanges.

Delivery Tracking Hub

Courier-broker label generation and enriched tracking, with an admin fulfillment dashboard across shops and couriers.

Dispute Management

Incident handling with admin arbitration, conditional commission reversal, and payout holds.

Complaint Routing

Message routing that separates complaints from ordinary customer questions.

Finance & Settlement

Payments

Provider-agnostic split payment per vendor, with capture and refund.

Payouts

Payout accounts, provider onboarding, payout workflows, and webhook processing, with Stripe Connect out of the box.

Commission

A rule-based engine across product, type, collection, category, and seller, with most-specific-wins resolution, per-currency fixed or percentage rates, per-order commission lines, and batch updates.

Refunds

Per-line refunds and configurable refund reasons.

Financial Ledger & Reconciliation

A double-entry ledger with current, accrued, and paid balances, period-correct returns, and finance-grade reconciliation reports.

Advanced Commission Rules

Capped and tiered commissions with automatic promotional start, end, and expiry.

Payout Cycles & AML

Configurable payout cycles with reserves, holds, and full AML and beneficial-owner verification.

Integration & Sync

Import & Integration Framework

Baselinker, Apilo, and API feed connectors with a mapping wizard and per-SKU error reports.

Inventory Synchronization

Real-time and scheduled ERP stock sync with atomic reservation to prevent overselling.

Connectors

Ready integrations with Magento, ERP, PIM, and storefront platforms.

Operations & Growth

Promotions

Vendor-scoped and platform-wide promotions with promo codes.

Campaigns

Vendor-scoped and marketplace-wide campaigns with vendor opt-in.

Reviews

Customer reviews for products and sellers, with aggregate seller ratings.

Workflow Engine

Workflows with compensation and rollback, and extension hooks across more than twenty workflow groups.

Campaign Pages

Themed campaign pages with seller participation flows and promo-code commission accounting.

Operational Analytics

GMV, commission, and velocity dashboards with real-time financial-health and anomaly alerts.

Platform & Trust

RBAC

An auto-registered roles module with vendor-scoped, row-level data isolation.

API

A fully typed REST API across admin, vendor, and store scopes.

Multi-channel

Sales channels, regions, tax regions, multi-currency, and i18n.

Admin & Vendor Dashboards

Two panels on a shared design system, extensible through the Dashboard SDK with file-based routes, component overrides, and source-distributed blocks.

Infrastructure

MIT-licensed and self-hostable on any cloud or on-premise, with full code ownership.

Compliance Layer

Omnibus price history, period-correct tax, GPSR and energy-label fields, and GDPR retention.

Audit Log

A full record of operator and financial actions with actors, timestamps, and login history.

SSO & Data Controls

Enterprise SSO, export controls, and multi-tenant isolation.

50+ modules, one platform, full source for the people who run them