Lyngdorf MCP Server (thejens/lyngdorf-mcp) is an MCP server listed on the M8ven Trust Index. It scores 60 out of 100, grade C. It declares 43 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
60/100

Lyngdorf MCP Server

Controls Lyngdorf Audio devices (TDAI, MP, CD series) via TCP with automatic device discovery, comprehensive audio controls including volume, source selection, RoomPerfect, and playback management with built-in safety features.

→ thejens/lyngdorf-mcp· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

thejens

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
🚨
Known vulnerabilities in dependencies: 1 critical, 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
// tools this server exposes43 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

powerOn

Turn the audio amplifier on

powerOff

Turn the audio amplifier off

togglePower

Toggle amplifier power state

setVolume

Set absolute volume level in dB. VOLUME GUIDANCE: dB scale is logarithmic - every 10dB increase doubles perceived loudness. Reference levels: -50 to -40dB (very quiet/background), -40 to -30dB (quiet conversation), -30 to -20dB (normal listening), -20 to -10dB (loud), -10 to 0dB (very loud), above 0…

volumeUp

Increase volume by 0.5dB steps. VOLUME GUIDANCE: Due to logarithmic nature of dB, single steps (0.5dB) are barely audible. For noticeable changes: use 4-6 steps (2-3dB) for moderate adjustments, or 10+ steps for significant changes. Typical listening: -40 to -30dB (quiet background), -25 to -15dB (m…

volumeDown

Decrease volume by 0.5dB steps. VOLUME GUIDANCE: Due to logarithmic nature of dB, single steps (0.5dB) are barely audible. For noticeable changes: use 4-6 steps (2-3dB) for moderate adjustments. Typical listening: -40 to -30dB (quiet background), -25 to -15dB (moderate), -10 to 0dB (loud). Always ch…

getVolume

Get current music/audio volume level

mute

Mute the audio/music

unmute

Unmute the audio/music

setBass

Set bass gain level (-12 to +12 dB)

getBass

Get current bass gain level

setBassFrequency

Set bass frequency (20 to 800 Hz)

getBassFrequency

Get current bass frequency

setTreble

Set treble gain level (-12 to +12 dB)

getTreble

Get current treble gain level

setTrebleFrequency

Set treble frequency (1500 to 16000 Hz)

getTrebleFrequency

Get current treble frequency

setBalance

Set left/right balance (L10-L1, 0, R1-R10)

getBalance

Get current left/right balance

setSource

Set input source

getSource

Get current audio input source

setRoomPerfectFocus

Set RoomPerfect focus position (1-8)

setRoomPerfectGlobal

Set RoomPerfect to Global position

getRoomPerfect

Get current RoomPerfect setting

setVoicing

Set voicing preset

nextVoicing

Switch to next voicing preset

previousVoicing

Switch to previous voicing preset

getVoicing

Get current voicing preset

play

Toggle music playback (play/pause). Works with streaming sources like Spotify, AirPlay, Roon, etc.

pause

Pause music playback (same as play - it toggles). Works with streaming sources.

next

Skip to next track. Works with streaming sources.

previous

Go to previous track. Works with streaming sources.

listSources

List all available input sources with their actual names from the device

listRoomPerfectPositions

List all RoomPerfect positions with their names from the device

getMuteStatus

Check if audio is currently muted

getStreamType

Get the current streaming service (Spotify, AirPlay, Roon, etc.)

getAudioStatus

Get current audio format information

getDeviceInfo

Get device model and identification information

discoverDevices

Discover Lyngdorf devices on the network via mDNS

listDevices

List all discovered Lyngdorf devices

selectDevice

Select and connect to a specific device by number

listVoicings

List available voicing presets and show current selection

getStatus

Get comprehensive device status

// known CVEs in dependencies1 critical3 high1 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@4.0.15GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.24.2GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.24.2GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

highws@8.18.3GHSA-96hv-2xvq-fx4p

ws: Memory exhaustion DoS from tiny fragments and data chunks

lowws@8.18.3GHSA-58qx-3vcg-4xpx

ws: Uninitialized memory disclosure

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configLYNGDORF_IPManually specify device IP if auto-discovery fails
configVOLUME_HARD_LIMITMaximum volume level (dB) that cannot be exceeded via tools
configVOLUME_WARNING_THRESHOLDVolume level (dB) that triggers a warning requiring user confirmation
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

43/43 tools missing one or more hints — powerOn (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); powerOff (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); togglePower (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +40 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Production dependencies are patched

0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.24.2 (high), @modelcontextprotocol/sdk@1.24.2 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dev dependencies

1 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
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commit: 215047e05d0dfcd503581808c4fb49d951768961
code hash: b0bbbb5fae0176e4b6a6342b773a7e1a453b851636e275adb3dc1152db74f2d4
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