Version v0.52 of Metabase is no longer supported. Check out the docs for the current stable version, Metabase v0.63.
Premium features
API endpoints for Premium features.
GET /api/premium-features/token/status
Fetch info about the current Premium-Features premium features token including whether it is valid, a trial token, its
features, when it is valid-thru, and the status of the account.
Read docs for other versions of Metabase.