Is your feature request related to a problem? Please describe.
Currently, you have 2 options to connect Cube to Metabase, Semantic Layer Sync and SQL API. But Semantic Layer Sync asks for username+password which is not preferable way of integration after Metabase API was released.

Describe the solution you'd like
Please, add support for Metabase API to connect Cube to Metabase.

Describe alternatives you've considered
SQL API works. Though I can send queries, but the propagated models cannot be opened via GUI...

Additional context