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.API conventions
Authentication, seller scoping, pagination, field selection, and webhooks.
Admin API
Operator routes under
/admin/*.Vendor API
Seller-scoped routes under
/vendor/*.Store API
Storefront routes under
/store/*.Panel extensions
File-based helpers for extending the Admin and Vendor panels without forking.Overview
Typed targets, persistence, and how the helpers fit together.
Widgets
defineWidgetConfig: zones, config, and component props.Custom Fields
defineCustomFieldsConfig: forms, displays, and list columns.Create a new page
defineNavigationConfig and createFormHelper.Configuration
Configuration
withMercur(), environment variables, and provider options.Platform modules
Data models, workflows, service, and events for each domain.