Sorry to know that some functionality you found helpful has gone away! One of the reasons we decided to migrate away from Apiary is that we found some of the examples very confusing. In particular, the Python examples used APIs we would not recommend.
Is it mostly the curl examples that you found helpful? Do you think a curl primer specifically for the Central API endpoints would be helpful? Or do you really want them inline? One issue we found with the curl examples is that because they didn't include auth they felt of limited value.
We haven't explicitly shared this, but the new docs are powered by the OpenAPI spec which has a lot of tooling around it. Here is the source. In particular, you can use that in tools like Postman if you want to try single queries to get to know the API or perform one-time actions. There's more information about using Postman with the Central API in this thread.