FreqBlog vs AudD
Before comparing feeds and fields, it helps to name the job honestly, because FreqBlog and AudD answer two different questions. AudD answers "I have some audio — what song is this?": it fingerprints a file, URL, microphone clip or live stream and returns the track's identity. FreqBlog answers "I already know the track — what are its musical characteristics?": you pass a name and artist (or an ISRC, MusicBrainz ID or Spotify ID) and get back computed audio features like BPM, key, energy and mood. If you're choosing between them, the real question is which of those two jobs you actually have.
At a glance
| Dimension | FreqBlog | AudD |
|---|---|---|
| How you look up a track | By name + artist, ISRC, MusicBrainz ID, or Spotify ID — no audio and no Spotify ID required | By audio: an uploaded file, an audio/video URL, a microphone recording, or a live stream (fingerprint recognition); text name/artist lookup is not supported |
| Audio-analysis fields returned | 42 fields including BPM, musical key (name + Camelot + Open Key), energy, mood, danceability and genre, computed with Essentia on the audio | Recognition metadata: artist, title, album, release date, label, timecode and streaming links; BPM, key, energy and mood are not among the documented response fields |
| LLM / agent access (hosted MCP) | Hosted MCP server at mcp.freqblog.com/mcp for LLMs and agents |
No hosted MCP server is published on its site or docs |
| On-miss backfill | A track that isn't in the catalogue is fetched on demand and returned | No on-miss catalogue-add is documented; custom-content upload is offered for building your own recognition database |
| DJ / set tooling | Harmonic set-builder (/transition, /next-track, /setlist) plus /charts and /similar |
Scoped to recognition and 24/7 stream / airplay monitoring; no set-building or recommendation endpoints |
| Entry pricing & free tier | ~£0.17 per 1,000 requests; free tier of 1,000 requests/month, no card | $5 per 1,000 requests pay-as-you-go (volume rates down to $2); 300-request free trial, no card |
| Operator transparency | Operated by a named individual, Steven Birring (Nuneaton, UK), an ICO-registered sole trader trading as Stackbase / FreqBlog | Operated by AudD, LLC, per the copyright notice on its terms page |
Competitor details verified from audd.io, docs.audd.io and the AudD terms page (July 2026). AudD is a registered trademark of its respective owner; comparison points reflect publicly documented scope, not a judgement of quality.
When AudD is the better fit
For a large class of problems, AudD is the right tool and FreqBlog simply isn't built for the job:
- You have audio but not the name. Identifying an unknown song from a recording, a sample, or user-generated content is exactly what AudD's Shazam-style fingerprinting does. FreqBlog needs a track you can already name or reference by an ID — it does not identify audio.
- Continuous stream and airplay monitoring. AudD offers 24/7 per-stream monitoring of radio, Twitch and YouTube, which suits airplay logging and royalty use cases. FreqBlog does no audio fingerprinting or stream monitoring.
- Copyright / DMCA scanning of uploads. Matching user uploads against a recognition catalogue, including modified audio such as remixes and pitched edits, is a documented AudD strength. FreqBlog has no equivalent.
Why teams pick FreqBlog
- You already know the track. When the identity isn't the question, FreqBlog turns a name, ISRC, MBID or Spotify ID into a full musical profile — no audio to capture, host or upload.
- Features you can actually mix on. One call returns 42 fields including BPM, key (name + Camelot + Open Key), energy, mood and genre, computed with Essentia on the audio rather than reserved from a third party.
- Agent-native. A hosted MCP server at
mcp.freqblog.com/mcplets an LLM or agent query features, charts and set tools directly. - Set-building, not just data. Harmonic tooling (
/transition,/next-track,/setlist) plus/chartsand/similarturn features into playable orderings. - Gaps fill themselves. On-miss backfill fetches a track on demand when it isn't already in the catalogue, so a miss usually becomes a hit.
- Low friction to start. A 1,000-request monthly free tier with no card, then roughly £0.17 per 1,000 requests.
- A named, accountable counterparty. FreqBlog is run by an ICO-registered UK sole trader you can name and contact directly — useful when a data-processing agreement needs a specific counterparty.
FAQ
Do I need a Spotify ID to use FreqBlog?
No. A name plus artist works on its own, and you can also key on ISRC, MusicBrainz ID or Spotify ID if you have one. There is no requirement to supply a Spotify ID or any audio.
Can AudD return a track's BPM or musical key?
AudD's documented recognition response returns fields such as artist, title, album, label, timecode and streaming links; BPM, key, energy and mood are not among those documented fields. If you need computed tempo and key, that is FreqBlog's core output.
Can FreqBlog identify a song from an audio recording, like AudD?
No. FreqBlog resolves a track you can already name or reference by an ID; it does not fingerprint audio. To identify an unknown recording or monitor a live stream, AudD is the appropriate tool.
What does it cost to try FreqBlog?
The free tier is 1,000 requests per month with no card required; beyond that, pricing is roughly £0.17 per 1,000 requests.