Google has posted a survey asking SEOs, webmasters, developers, etc to let Google know which Search Console API features they want that is currently not available.
Mariya Moeva posted the survey on Twitter and wrote "site owners, SEOs, and developers! What Search stats or functionality is your most wanted to get via API?"
You can access the survey over here - your responses will most likely be used to help Google prioritize what future development they do towards the Google Search Console API.
Make sure your voice is heard.
Forum discussion at Twitter.