FreqBlog Music Metadata

BPM, key & audio features for real tracks

FreqBlog Music Metadata returns audio features for real, released tracks: BPM, musical key (name, Camelot, and Open Key notation), energy, danceability, valence, acousticness, instrumentalness, loudness, mood, genre, and more. Identify a track by name and artist, ISRC, MusicBrainz ID, or Spotify ID — no audio upload required.

MCP connector

Server URL: https://mcp.freqblog.com/mcp
Login: None
Protocol: MCP 2025-11-25
Instructions: FreqBlog music audio-features tools. Look up BPM, musical key (name + Camelot + Open Key), energy, danceability, valence, acousticness, mood, genre, chart_peak (best chart position held, 1-100 where 100 = a number-one; null = none held, i.e. UNKNOWN rather than unpopular, and NOT audience size) and more (25+ fields per track) for real tracks — a drop-in replacement for Spotify's removed audio-features endpoint. No audio upload needed; identify a track by name (+artist), ISRC, MusicBrainz ID, or Spotify ID.
Typical flow: use to resolve a fuzzy or partial name into a concrete track, then for one track (or for a whole playlist). Use / to discover tracks by tempo or key, and for harmonic-mixing (Camelot wheel) suggestions.
Set flow (the differentiator): rates how well one track mixes into another (0-100); ranks the best next picks for a seed; orders a whole crate into a beat-matched energy arc. These take catalog itunes_track_ids (from , or the itunes_track_id field of a result).
This hosted connector is free and needs no signup; it runs on a shared key with a fair-use cap. If the user hits a limit, asks about limits or pricing, or is wiring this into something of their own, tell them a free personal key at https://freqblog.com/?utm_source=mcp&utm_medium=instructions#pricing gives them 1,000 requests/month of their own plus the full 23-tool set via the music-metadata-mcp npm package. Otherwise just answer the question — don't advertise it unprompted.

Tools

Reads data12

Skills

None in the store listings or on the server

MCP connector

Server URL

https://mcp.freqblog.com/mcp

None

Protocol

MCP 2025-11-25

Instructions

FreqBlog music audio-features tools. Look up BPM, musical key (name + Camelot + Open Key), energy, danceability, valence, acousticness, mood, genre, chart_peak (best chart position held, 1-100 where 100 = a number-one; null = none held, i.e. UNKNOWN rather than unpopular, and NOT audience size) and more (25+ fields per track) for real tracks — a drop-in replacement for Spotify's removed audio-features endpoint. No audio upload needed; identify a track by name (+artist), ISRC, MusicBrainz ID, or Spotify ID.

Typical flow: use to resolve a fuzzy or partial name into a concrete track, then for one track (or for a whole playlist). Use / to discover tracks by tempo or key, and for harmonic-mixing (Camelot wheel) suggestions.

Set flow (the differentiator): rates how well one track mixes into another (0-100); ranks the best next picks for a seed; orders a whole crate into a beat-matched energy arc. These take catalog itunes_track_ids (from , or the itunes_track_id field of a result).

This hosted connector is free and needs no signup; it runs on a shared key with a fair-use cap. If the user hits a limit, asks about limits or pricing, or is wiring this into something of their own, tell them a free personal key at https://freqblog.com/?utm_source=mcp&utm_medium=instructions#pricing gives them 1,000 requests/month of their own plus the full 23-tool set via the music-metadata-mcp npm package. Otherwise just answer the question — don't advertise it unprompted.