This page hosts the downloads for the following KNX IoT frameworks.

• KNX Information Model (KIM)
• KNX IoT 3rd Party API
• KNX IoT Point API
• KNX IoT Router

The page is part of the KNX support system, you can navigate directly to it, or you may  be forwarded from https://schema.knx.org.

KNX Information Model

Download the KIM ontology in different formats. 

To visualize the KIM ontology several tools can be used (e.g., Protegé, Stanford University), an online example can be found here.

To import the KIM ontology directly in a tool the IRIs can be used as a URL, either with the default format TURTLE or XML/JSON-LD.

• http://schema.knx.org/2020/ontology  returns the most recent KIM ontology version, TURTLE format
• https://schema.knx.org/2020/ontology?destination_format=xml returns the most recent KIM ontology version, XML format
• https://schema.knx.org/2020/ontology?destination_format=jsonld returns the most recent KIM ontology version, JSON-LD format
• http://schema.knx.org/2020/ontology/v2 returns a specific (TURTLE) KIM ontology version, v2

Regardless of the IRI scheme http://, due to security reasons all downloads from above will be performed with the HTTPS scheme.

KNX IoT 3rd Party API

View the API content or download it.  Access to further development resources can be found here.

KNX IoT Point API

View the API content or download it. Access to further development resources can be found here.

KNX IoT Router

View the API content or download it.

* The used schemes are offered in two formats: JSON (latest draft, for interoperability with other frameworks), and OAS (as demanded by the OpenAPI specification 3.0.x). The differences between these formats are available here.