In my opinion, GraphQL moves too much of the burden to the user of the API. It makes most sense if the data is highly dynamic, you have a mobile app and every call is expensive, or (and this seems more common) the backend and frontend teams don't like to talk to each other. As a user, I just want to GET /foo, with a good old API token I pasted from your dev docs, and move on to the next thing. I don't want to spend time figuring out your database schema. Or perhaps I've just yet to see single good public GraphQL API. I just recently had look at the Github GraphQL API and it's non-existent docs (no, I don't want introspect your data models at runtime), noped the hell out of that, and got the REST integration for the bit I needed done in an hour.