So now that we have 16 months of data in the new Google Search Console for the Search Performance report people want it in the Search Analytics API. Well, that will happen within the next few weeks.
Google’s John Mueller said in a webmaster hangout yesterday at the 23:42 mark that they are adding the extended data to the API. He said:
There are no additional plans for other APIs at this moment, he added later but you can expect more data to come through the API in the upcoming weeks. I assume, Google will announce it when this is out or someone savvy will spot it when they are messing with the API.
John added:
Here is the video embed at the start time:
Forum discussion at YouTube.