For some developers is interesting to access the database of attributes you can search in the main menu -> Search
You have it in this link https://smartdatamodels.org/extra/smartdatamodels.json the file (It is a large one).
It has a CC-BY license so feel free to use it and we will be happy to disseminate the use that you do with it.
It is updated once a day.
Fields for each attribute
_id: identifier of the item
property: the name of the attribute
dataModel: the data model this attribute is present
repoName: the subject this data model belongs to
description: the description of the attribute
typeNGSI: Whether it is a property, Geoproperty, or relationship
modelTags: inherited from the data model tags
license: link to the license for the data model
schemaVersion: version of the data model
type: data type
model: when available the reference model for the attribute
units: when available the recommended units for the attribute
format: either date, or time, or date-time, or URI, etc the format of the attribute