> 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/system-services/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.navipartner.com/_mcp/server. # System Services > Overview of essential system service endpoints. Our API provides several essential endpoints designed to facilitate key system operations. These endpoints serve critical functions for interacting with our Business Central backend, ensuring smooth communication and reliable access to foundational resources. Currently, we offer the following system services: ### Companies Endpoint The [companies](/apis/api-reference/system-services/companies/get-companies) endpoint returns a list of companies available in your Business Central environment. As Business Central operates on a multi-company model, this list is essential for all subsequent API calls, allowing clients to specify the company context in which an operation should be performed. ### Hello World Endpoint The [helloworld](/apis/api-reference/system-services/helloworld/get-hello-world) endpoint serves as a diagnostic tool to verify that communication between the API client, middleware, and backend is functioning correctly. This endpoint is data-agnostic and provides a simple response confirming that the entire API pipeline is operational. > 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. ## Docs - [Companies](https://docs.navipartner.com/apis/api-reference/system-services/companies.md): Explanation of what companies mean in Business Central and how to work with them in API services. - [Hello World](https://docs.navipartner.com/apis/api-reference/system-services/helloworld.md): Data agnostic endpoint validating end-to-end communication. ## API Docs - Companies [Get all companies](https://docs.navipartner.com/apis/api-reference/system-services/companies/get-companies.md) - Companies [Get Current Company](https://docs.navipartner.com/apis/api-reference/system-services/companies/get-company.md) - Hello World [Hello World](https://docs.navipartner.com/apis/api-reference/system-services/helloworld/get-hello-world.md) - Webhooks [Get subscriptions](https://docs.navipartner.com/apis/api-reference/system-services/webhooks/get-subscriptions.md) - Webhooks [Get subscription](https://docs.navipartner.com/apis/api-reference/system-services/webhooks/get-subscription.md) - Webhooks [Create subscription](https://docs.navipartner.com/apis/api-reference/system-services/webhooks/create-subscription.md) - Webhooks [Delete subscription](https://docs.navipartner.com/apis/api-reference/system-services/webhooks/delete-subscription.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)