---
title: "API Reference"
description: "Reference documentation for the Business NXT GraphQL schema, features, and extensions for working with DMEs."
lang: en
languages:
  en: https://docs.vismasoftware.no/businessnxtapi/apireference/index.md
lastmod: 2026-07-10
---

> Documentation index: https://docs.vismasoftware.no/businessnxtapi/apireference/llms.txt


# API Reference

Last modified July 10, 2026

> Reference documentation for the Business NXT GraphQL schema, features, and extensions for working with DMEs.


This section provides a comprehensive documentation of the Business NXT GraphQL API. In this section you will find:

- [Schema](https://docs.vismasoftware.no/businessnxtapi/apireference/schema/index.md) documentation that details how to perform queries and mutations, how to execute asynchronous requests, how to fetch model information, and many others.
- [Features](https://docs.vismasoftware.no/businessnxtapi/apireference/features/index.md) such as filtering, pagination, sorting, aliases, directives, fragments, and more
- [Extensions](https://docs.vismasoftware.no/businessnxtapi/apireference/extensions/index.md) that enable you to work with data model extensions (DMEs)
- [Error handling](https://docs.vismasoftware.no/businessnxtapi/apireference/errors/index.md) information for understanding and managing errors that may occur
- [Rate limiting](https://docs.vismasoftware.no/businessnxtapi/apireference/ratelimits/index.md) information for understanding the rate limits that apply to your API usage

---

[View this page](https://docs.vismasoftware.no/businessnxtapi/apireference/)


## In this section


- [Schema](https://docs.vismasoftware.no/businessnxtapi/apireference/schema/index.md): Details the Business NXT GraphQL schema, Relay-like, exposing system and company databases with types named after tables, supporting queries and mutations.

- [Features](https://docs.vismasoftware.no/businessnxtapi/apireference/features/index.md): Comprehensive GraphQL features - filtering, sorting, pagination, fragments, aliases, directives, error handling, unoptimized queries, batch requests.

- [Extensions](https://docs.vismasoftware.no/businessnxtapi/apireference/extensions/index.md): GraphQL schema for data model extensions.

- [Error handling](https://docs.vismasoftware.no/businessnxtapi/apireference/errors/index.md): GraphQL API error handling - status codes, error messages, syntax errors, multiple request outcomes, execution tracing for troubleshooting, and detailed error…

- [Rate limits](https://docs.vismasoftware.no/businessnxtapi/apireference/ratelimits/index.md): Overview To keep the platform stable and fair for everyone, the Business NXT API applies rate limiting. There are two independent limits, checked in this order,…