MPD clients

Rockbox speaks the Music Player Daemon protocol on port 6600.

rockboxd runs a built-in MPD server on port 6600, so any of the dozens of MPD clients work out of the box — mpc, ncmpcpp, MALP, M.A.L.P., Cantata, Mopidy, Volumio’s UI, etc.

mpc -h localhost -p 6600 status
mpc -h localhost -p 6600 update
mpc -h localhost -p 6600 search title "money"
mpc -h localhost -p 6600 add /Music/Pink\ Floyd/Money.mp3
mpc -h localhost -p 6600 play

Compatibility

The implementation lives in crates/mpd/. It targets the standard MPD protocol version. Coverage:

• ✅ Status, current/next song, elapsed time
• ✅ Playback control: play/pause/next/previous/seek/stop
• ✅ Queue (add, addid, delete, clear, shuffle, move)
• ✅ Library (list, find, search, lsinfo)
• ✅ Saved playlists (load, save, rm, playlistadd)
• ✅ Volume, repeat, random, single, consume
• ✅ idle notifications (player, playlist, mixer, etc.)
• ⚠️ Sticker database — partial
• ⚠️ Outputs — single output exposed (the active sink)

Configuring the bind address

mpd_host = "0.0.0.0"
mpd_port = 6600

Recommended clients

Client	Platform	Notes
mpc	CLI	Scripting, smoke-testing
ncmpcpp	TUI	The classic terminal client
MALP	Android	Material Design, modern feel
M.A.L.P.	Android (F-Droid)	F-Droid build of MALP
Cantata	Linux / Windows / macOS	Full GUI client
Mopidy	Linux	Acts as an MPD-compatible aggregator

Idle subscriptions

mpc -h localhost -p 6600 idle player playlist mixer

Returns one event per change. The subscribe/channels channel commands are also implemented for client-to-client messaging.

Library updates

update triggers a full rescan of music_dir exactly like the GraphQL scanLibrary mutation. New files appear in MPD listings as soon as the scan finishes.