Music Metadata
- ArtistLink
- Decibel
- Discogs
- FreeDB
- Gracenote
- Last.fm
- MusicBrainz
- MusicStory
- Nokia
- OneMusicAPI
- OpenAura
- Rockol
- Rovi
- Spotify
- The Echo Nest
Discovery / Playlisting
- 8tracks
- Bandcamp
- The Hype machine
- Last.fm
- Playlists.net
- plug.dj
- Rovi
- Setlist.fm
- Shuffler.fm
- Spotify
- StereoMood
- Tastekid
- The Echo Nest
- Tunefind
Audio Content
- 7Digital
- 8Tracks
- Beatport
- ccMixter
- Deezer
- Feed.fm
- Free Music Archive
- Freesound
- Grooveshark
- Jamendo
- Medianet
- Mixcloud
- Playme
- Qobuz
- Rdio
- Shoudio
- SoundCloud
- Soundkeep
- Spotify
- Tomahawk
- Youtube
Audio Identification
Audio Analysis
Lyrics
Events
Music Analytics
Bootstrap
Musicmetric
Music Stores
- Amazon
- Apple iTunes
- Reverb.com – Buy and sell music gear
Miscellaneous
- The BBC
- DizzyJam – music merch
- Mozzi – sound synthesis for Arduino
- MuseScore – Sheet music
- Noteflight – Music notation
- SongMeanings
- Spreaker – API for internet radio shows
- Tinysong – url shortener, resolver for muisc
- This Is My Jam – music sharing, one song at a time
- WhoSampled
- YES – Broadcast Radio now playing info