jsonapi
jsonapi is heavily inspired by graphql, but aimed at a much simpler use case. The idea is to have a minimal framework for easily building JSON based APIs, that doesn’t require any particular frontend technology. The design is inspired in graphql’s idea of a single fully customizable endpoint, but instead of defining a specific query language, jsonapi is entirely based on JSON both for the query and the response, requires much less boilerplate code, only works in Python, and of course, is much less battle-tested. If you find graphql amazing but would like to try a decaffeinated version that you can setup in 10 lines, then give jsonapi a shot.