See What Databases You Have Access To

Assuming you have the pscale CLI installed and you've authenticated with it, you can run the following to view available databases.

$ pscale database list
  NAME        KIND    CREATED AT    UPDATED AT
 ----------- ------- ------------- -------------
  bookshelf   mysql   3 years ago   3 years ago

I'm not very active on my personal account. Planetscale is a multi-tenant SaaS though. I can switch from my personal org to another team I have access to.

$ pscale org switch another-team

And then from there I can run pscale database list again to see what databases I have access to from this other organization.

See pscale database help and pscale org help for more details.