> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.navipartner.com/apis/api-reference/memberships/service-membership/service-membership-attributes/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.navipartner.com/_mcp/server. # Attributes Attributes are key-value pairs that can be associated with both Memberships and Member entities. They provide a flexible way to store additional information without modifying the core data model. Each attribute consists of a unique key and a corresponding value, allowing you to extend the functionality and store custom data as needed. The main functions for working with attributes include: * **List**: Discover attributes available for a specific entity, returning an array of attribute keys (code) and the related data types, description, captions. * **Get**: Fetch the current set of attributes for an entity. * **Set**: Add or update one or more attributes by providing an array of key-value pairs. * **Delete**: Remove one or more attributes from an entity by specifying their keys. These operations enable dynamic customization and management of Memberships and Members, supporting a wide range of use cases and integrations. > Documentation for NaviPartner's NP Retail, NP Attractions, NP Hospitality, NP Store Assistant and Entria products, plus their REST APIs, built on Microsoft Dynamics 365 Business Central. ## API Docs - Attributes [List Attributes](https://docs.navipartner.com/apis/api-reference/memberships/service-membership/service-membership-attributes/list-membership-attributes.md) - Attributes [Get Values](https://docs.navipartner.com/apis/api-reference/memberships/service-membership/service-membership-attributes/get-membership-attribute-values.md) - Attributes [Set Values](https://docs.navipartner.com/apis/api-reference/memberships/service-membership/service-membership-attributes/set-membership-attribute-values.md) - Attributes [Remove Values](https://docs.navipartner.com/apis/api-reference/memberships/service-membership/service-membership-attributes/delete-membership-attribute-values.md) ## OpenAPI Specification The raw OpenAPI 3.1 specification for this API is available at: - [OpenAPI JSON](https://docs.navipartner.com/openapi.json) - [OpenAPI YAML](https://docs.navipartner.com/openapi.yaml)