What is the status of the intended GraphQL API for v8.1?

What is the status of the intended GraphQL API for v8.1? Is there any documentation?

My instance does not seem to have any graphql folder…

It’s not a folder, it’s a Symfony route ( a mapping from a URL path to a controller). It’s ready to be used (the entire SuiteCRM 8 UI runs on top of it), but Documentation is still lacking.

This post might be able to get you started, I posted a sample custom API entrypoint:

Once you can get the basics going, and understand the way URLs map to PHP classes, you should be able to find plenty of examples in the existing v8 code.