Musicmetric tracks and indexes data for 600,000 artists and over 10 million individual releases in real time. The API provides direct access to much of the data that is collected by the site. For artist based data Musicmetric guarantees data coverage for the top 1,000 artists.
The service provides fan activity data over time on social networks, sentiment analysis for music-related text and demographics on fans.
The API uses RESTful calls and responses are formatted in JSON.