Since much of the content from the API has been publicly shared with third parties without the third party actively subscribing to the API, we have split the API into two parts.
Our API will return the same results as before, except for the results where the KEY does not appear in it, the results will only contain the KID, you must then COPY the KID and click on Lookup here in the left menu and enter the KID in the KID field to have the KEY for that certain KID.
We are aware that these changes will have a far-reaching effect on the efficiency for our users which are using the API service. (But at the same time, we will manage to protect our data considerably better and provide faster updates.)