You can sign signup for a free non-commercial API key for the Semetric API at http://developer.musicmetric.com/signup.html.
A wrapper for the Semetric (and Musicmetric) API.
The SemetricAPI is the main entry point for interacting the with Semetric API:
>>> from semetric.apiclient import SemetricAPI
>>> from semetric.apiclient.entity import Artist
>>> semetricapi = SemetricAPI(apitoken)
>>> artist = semetricapi.get(Artist, id="fe66302b0aee49cfbd7d248403036def")
>>> artist.name
"Lady Gaga"