> ## Documentation Index > Fetch the complete documentation index at: https://docs.mercurjs.com/llms.txt > Use this file to discover all available pages before exploring further. # References > Technical references for Mercur's modules, HTTP APIs, workflows, and configuration. This section is the technical contract of the Mercur core plugin. Where the [Learn](/rc/learn/introduction) tab explains concepts, these pages document the exact surface: data models and their fields, module links, service methods, HTTP routes, workflow names, and configuration options. ## Modules Every marketplace capability ships as a Medusa module inside `@mercurjs/core`. Each reference covers the module's data models, enums, links to Medusa core entities, service methods, and options. Sellers, members, invites, and order groups. Commission rates, rules, and per-order commission lines. Payout accounts, onboarding, payouts, and the provider interface. Per-seller listings binding a variant to SKU, price, and inventory. Configurable attributes, values, and variant axes on native product options. Product change requests and the approval queue. Image galleries, thumbnails, banners, and icons for categories and collections. Provider-agnostic search with the built-in Orama provider. Extra columns on any entity without a custom module. ## HTTP API Mercur extends the Medusa server with three route surfaces. Start with the conventions page — authentication, seller scoping, and pagination work the same way across all of them. Authentication, seller scoping, pagination, field selection, and webhooks. Operator routes under /admin/\*. Seller-scoped routes under /vendor/\*. Storefront routes under /store/\*. ## Workflows and configuration Every workflow exported by @mercurjs/core, grouped by domain. withMercur(), environment variables, and provider options.