The Last.fm Python library by Adrian Sampson is related to the API services that include access to music events, charts, and music players. This library in particular tracks metadata lookup, fingerprint lookup, and fingerprint extraction.
WebRTC 1.0 has become a browser standard for realtime communications. Despite its widespread use, the API remained a W3C Candidate Recommendation. The API is now stable and considered feature complete. With its new designation, W3C calls for wide implementation and is working on future versions.