APIFUSEfs. It does what the ShowHN title says it does. (I had originally named it "apifuse", but find there is a SaaS by that name, so renamed the repo apifusefs, but still need to rename it internally and in docs. There is no association between apifusefs and the Saas known as "apifuse".)
Requires libFUSE (MacOS/Linux) and Python. It was made because I am a CLI kind of guy, and I live in a terminal so being able to fallback on muscle-memory shell instincts (for loops, piping commands and I/O, etc) without having to do a bunch of curling, or browsering, postman, etc.
It occurs to me that with all the hype lately about AI agent tool use, that it could be useful for this purpose as well, since the Agent would not need any special skill for it; the data just becomes navigable and readable as with any file in a directory tree.
I'd be interesting in hearing if you find this useful, dumb, broken, lacking an obvious feature, or anything else you might have to say about it.