Been looking for Xano / Supabase LTD alternative, nocodebackend seems to fit this requirement plus the automated API documentation which is a big plus. A little bit of drawbacks if you're into no-code/low-code builder is that this is not yet natively supported unlike you're connecting supabase with bubble for example (which is very simple due to the built-in support), but anyone good with REST API should be able to do just fine.

For no-code/low-code devs, grab this while you can.