The current json has the /archive page list which contains the link to the students' commits or repository.
Getting github links for every GSoC project (or atleast the ones that are on GSoC) lets you analyse these
Languages used and proportion
Commit frequency over the duration of GSoC.
Analyze what % of the project is done at which stage
Was any work done on the project after GSoC
Interaction by mentors and other contributors
Most successful GSoC projects so far, by stars and forks
The current json has the
/archivepage list which contains the link to the students' commits or repository. Getting github links for every GSoC project (or atleast the ones that are on GSoC) lets you analyse these