Web of Things Thing Description
W3C standard for describing IoT device interfaces. Machine-readable properties, actions, and events.
Visit WebsiteBrowse the tree, filter it, or click any class to see just its corner of it.
Where this one tends to earn its keep.
IoT device self-description and discovery
Cross-vendor IoT interoperability
Automated IoT orchestration
Digital twin interface specification
I haven't checked this label against the actual licence text — it's the catalogue's original guess. Check the ontology's own site before you rely on it.
Others worth a look in IoT & Sensors.