Djane.io is an open-source context broker implementation that also supports the NGSI-LD standard. It aims to provide a flexible and extensible platform for managing context information
A Python library dedicated to NGSI-LD, which serves both as an NGSI-LD API client and a toolbox for efficiently creating and manipulating NGSI-LD entities.
The OGC SensorThings API is a geospatially enabled framework that connects Internet of Things (IoT) devices, data, and applications via the web. This API facilitates interoperability and seamless integration within IoT ecosystems.
The pysmartdatamodels package provides a comprehensive collection of open-licensed, free data models suitable for digital twin implementations, data spaces, and smart application development. This Python package includes functions for utilizing these data models in development, ensuring compatibility and simplification in digital solutions creation​.
It is a consensus-based model designed to streamline the integration of smart applications by providing a set of modular building blocks. SAREF introduces core concepts, relationships, and axioms for the smart applications domain, emphasizing reuse, modularity, extensibility, and maintainability.
DTDL is based on JSON-LD and is programming-language independent. DTDL isn't exclusive to Azure Digital Twins. It is also used to represent device data in other IoT services such as IoT Plug and Play.