FreqBlog Music Metadata

If you need an alternative to Spotify's audio features API, this pulls track metadata including BPM, key, mood classifications, and genre tags. It's hosted at mcp.freqblog.com and works over streamable HTTP, so you can query it without managing authentication flows or dealing with Spotify's rate limits. Reach for this when you're building music discovery tools, DJ software, playlist generators, or anything that needs to understand the musical characteristics of tracks. The focus is on actual audio analysis rather than user listening data, making it useful for music-first applications where you care more about tempo and tonality than popularity metrics.