We're exploring making a GraphQL API for the Schemedoc project
(<https://srfi.schemers.org/scheme-lists-subscribe.html> and
<https://github.com/schemedoc> - new members welcome :)

Since we want to do as much as possible in Scheme, I'll write GraphQL
client and server libraries to support the work (including an
alternative S-expression syntax for GraphQL documents that we've been
thinking about with John Cowan). The libraries are meant to be portable
but initial experiments show that Peter's great web libraries make this
easy on Chicken, so I'll start with a Chicken-native implementation and
then gradually port it to other Schemes.

In case anyone wants to advise or to test this early for your own
project, let me know. Otherwise I'll announce when some actually
reusable code has been put together :)