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Audionaut

NPM · AUDIONAUT-MCP

Edit Audionaut multitrack projects: cut, fade, analyse, export. Requires the Audionaut app.

Available components

0 this week 80 Trust /100

Last scanned (17 hours ago)

Scores higher than 65% of npm servers

Category Design and Media

Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security98
  • No malware found by supply-chain analysis.Pass
  • No known CVEs affecting this package version or its production dependencies.Pass
  • No install/post-install scripts declared.Pass
  • 30 of 92 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
  • Source repository is publicly reachable at the declared URL. View diagnostics → Pass
  • Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
  • Clear OSI-approved license (GPL-3.0-or-later).Pass
  • Actively maintained (last published 10 days ago).Pass
  • Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability62
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 5364 tokens (~233/item across 23 items; 23 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
  • No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Tool Safety75
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • 0 of 4 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "remove_clip" implies "remove" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
  • An AI judge read all 24 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
What we tested

Checks we ran (16)

  • Malware scan
  • Known CVEs
  • Install scripts
  • Dependency health
  • Source repository
  • Provenance
  • License
  • Maintenance
  • Security disclosure
  • Schema quality
  • Stability
  • Tool coverage
  • Injection markers
  • Destructive annotations
  • Judged manipulation
  • MCP protocol

Does not apply to this package (2)

  • Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
  • Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.

The score does not measure everything. What the score does not measure →

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 29 Oct 26 0
    • Stability: 0.97 → pass security
  • 28 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

  • 26 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

  • 25 Oct 26 0
    • Stability: 0.83 → unverified ▼ security
    • Tool safety: pass → unverified ▼ security
    • Capabilities: pass → unverified ▼ functional
    • Tool coverage: 100 → unverified ▼ functional
    • Package version: 0.4.1 → 0.5.0 functional
  • 24 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 22 Oct 26 +16
    • Malware scan: unverified → pass ▲ security
  • 21 Oct 26 −16
    • Malware scan: pass → unverified ▼ security
    • Schema quality: 178 → 233 ▼ functional
    • Package version: 0.4.0 → 0.4.1 functional
  • 19 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 5 Nov 2026 · Analysed npm/audionaut-mcp@0.5.0

Provenance No attestation

The registry publishes no build provenance for this version, so there is nothing to verify.

Result No attestation
Ecosystem npm

Background: How many MCP packages publish verified provenance →

Dependencies 92 packages
Packages resolved 92
Stale 30
Tree resolution Complete

Background: SBOMs and build attestations, explained →

MCP tools · 23 exposed · ~5,153 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
analyze ~113

Runs audio analysis (segment boundaries, beats with BPM, onsets) on the project's audio files - or one standalone audio file - and caches the results next to the project for auto_edit/assemble to use. Reports progress as each file and type finishes when the call carries a progressToken.

NameTypeReqDescription
targetstringyesA .audium project package or a single audio file
typesstring–Comma-separated analysis types from segments, beats, onsets (default: segments,beats, what auto_edit needs)

No output schema declared.

No examples provided.

assemble ~198

Builds an arrangement of the given duration from the project's regions, sequentially or at random (requires regions - e.g. from auto_edit).

NameTypeReqDescription
crossfadesboolean–Apply crossfades at joints (default true)
duration_secondsnumber–Target duration (default 60)
modestring–Selection mode (default sequential)
projectstringyesPath to the .audium project package (absolute paths recommended)
seedinteger–Random seed for reproducible random mode
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackinteger–Track id (default 0)

No output schema declared.

No examples provided.

auto_edit ~214

Segments a clip on a track using cached analysis results (run analyze first). Splits the clip into musically-aligned regions.

NameTypeReqDescription
clipinteger–Playlist item id (default: the track's clip)
crossfadesboolean–Apply crossfades at joints (default true)
duration_secondsnumber–Target duration
measuresnumber–Segment length in measures
projectstringyesPath to the .audium project package (absolute paths recommended)
segmentsinteger–Number of segments
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackinteger–Track id (default 0; imported audio lands on a new track)

No output schema declared.

No examples provided.

cleanup_regions ~127

Deletes every region that has no clip on the timeline (the GUI's Delete Unused Regions). The audio files stay in the package.

NameTypeReqDescription
projectstringyesPath to the .audium project package (absolute paths recommended)
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…

No output schema declared.

No examples provided.

clip_fades ~527

Sets the addressed clip's fade ramps and curve exponents (0.1-4, 0.5 = equal power). All four fade values are in `unit` (default bars) and 0 clears one. Each ramp has two edges measured inward from the clip edge: the fade-in runs from fade_in_start to fade_in after the clip start, the fade-out from fade_out to fade_out_end before the clip end, so a ramp lasts fade_in - fade_in_start (or fade_out - fade_out_end). A negative offset puts that edge outside the clip, playing source audio beyond it - e.g. fade_out 0.25 with fade_out_end -0.25 (seconds) is a 0.5 s ramp centred on the clip end, the outgoing half of a crossfade. Values are clamped against each other within the clip. The address must match exactly one clip.

NameTypeReqDescription
atnumber–Timeline position of the clip (exclusive with region)
fade_innumber–Where the fade-in ramp reaches full level, measured from the clip start; the ramp length only when fade_in_start is 0
fade_in_curvenumber–Fade-in curve exponent (0.1-4, 0.5 = equal power)
fade_in_startnumber–Where the fade-in ramp begins, measured from the clip start; negative = before the clip start
fade_outnumber–Where the fade-out ramp begins, measured back from the clip end; the ramp length only when fade_out_end is 0
fade_out_curvenumber–Fade-out curve exponent (0.1-4, 0.5 = equal power)
fade_out_endnumber–Where the fade-out ramp reaches silence, measured back from the clip end; negative = past the clip end
projectstringyesPath to the .audium project package (absolute paths recommended)
regionstring–Region name of the clip
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackinteger–Track id
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

clip_gain ~250

Sets the addressed clip's gain - linear by default, dB with db=true - on every destination channel, or one channel. The address (at or region) must match exactly one clip.

NameTypeReqDescription
atnumber–Timeline position of the clip (exclusive with region)
channelinteger–One destination channel (default: all)
dbboolean–Interpret gain as decibels
gainnumberyesGain value (linear unless db=true; linear must be >= 0)
projectstringyesPath to the .audium project package (absolute paths recommended)
regionstring–Region name of the clip
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackinteger–Track id
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

clip_speed ~395

Sets a clip's playback speed (ratio 0.25-4, 2.0 = double speed, half as long). The mode picks how: repitch (default, varispeed - pitch and length change together) or stretch (pitch-preserving time-stretch). Mode can also be changed on its own. lockTempo ties the clip to the project tempo (speed = project tempo / clip tempo, following tempo changes); the clip tempo is detected by beat tracking or given with `tempo`, which implies the lock.

NameTypeReqDescription
atstring–Timeline position of the clip (in `unit`)
lengthstring–Fit the clip to this timeline duration (in `unit`)
lockTempoboolean–Lock the clip to the project tempo (true) or release it (false)
modestring–How the speed is realised: varispeed or pitch-preserving
projectstringyesPath to the .audium project package (absolute paths recommended)
rationumber–Speed ratio (0.25-4)
regionstring–Region name of the clip
semitonesnumber–Pitch shift in semitones (ratio = 2^(n/12))
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
temponumber–The clip's own tempo in BPM; sets it and locks the clip
trackinteger–Track id to narrow the match
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

create_project ~65

Creates a new empty Audionaut project (.audium package) with one track. Fails if the path already exists.

NameTypeReqDescription
channelsinteger–Channels on the initial track (default 2)
projectstringyesTarget path for the new .audium package

No output schema declared.

No examples provided.

create_region ~215

Creates a named region from a timeline range on every track whose clip fully contains it (the GUI's Create Region command). The arrangement itself is unchanged. The name must not be taken by another region (error name_taken).

NameTypeReqDescription
endnumberyesRange end (must be after start)
namestringyesName for the new region
projectstringyesPath to the .audium project package (absolute paths recommended)
startnumberyesRange start, e.g. 23 for bar 23
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

export_audio ~413

Renders the project offline to an audio file (no audio device needed). The output's extension picks the format: .wav (8/16/24/32 bit), .flac (lossless and compressed, 16/24 bit, at most 8 channels per file), .aiff (8/16/24 bit), .ogg (Ogg Vorbis, lossy, at most 8 channels) or .mp3 (lossy, mono or stereo, at most 48 kHz). Lossy formats take bitrate_kbps instead of bit_depth. Pass region to bounce a single region instead - always dry, without any clip's gains or fades. Reports progress in 5% steps when the call carries a progressToken.

NameTypeReqDescription
bit_depthinteger–Bit depth (default 24; not for .ogg/.mp3)
bitrate_kbpsinteger–Bit rate for .ogg (64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 500) or .mp3 (96, 128, 160, 192, 256, 320); default 192
channelsinteger–Output channel count (default 2)
length_secondsnumber–Export length (default: whole project)
multi_monoboolean–Write one mono file per channel instead
outputstringyesOutput path ending in .wav, .flac, .aiff, .ogg or .mp3 - the format follows the extension
projectstringyesPath to the .audium project package (absolute paths recommended)
regionstring–Bounce this region instead of the whole project
sample_rateinteger–Sample rate in Hz (default 44100)
start_secondsnumber–Export start position
trackinteger–Track id, to disambiguate same-named regions

No output schema declared.

No examples provided.

get_project_info ~80

Summarizes an Audionaut project: tempo, tracks, clips with positions/durations and their audio files. Set raw=true for the full persistence JSON instead of the summary.

NameTypeReqDescription
projectstringyesPath to the .audium project package (absolute paths recommended)
rawboolean–Dump the full persistence JSON instead of the summary

No output schema declared.

No examples provided.

import_audio ~157

Imports one or more audio files into the project at the given position and saves it. Note: importing creates a new track holding the files.

NameTypeReqDescription
filesarrayyesAudio file paths to import
position_secondsnumber–Timeline position for the files (default 0)
projectstringyesPath to the .audium project package (absolute paths recommended)
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…

No output schema declared.

No examples provided.

move_clip ~264

Moves one clip to a new timeline position and/or onto another track. Address it by position (at) or region name; the address must match exactly one clip. to_track takes a track id, or "new" to create a track for it; without to the clip keeps its position. Give at least one of to and to_track.

NameTypeReqDescription
atnumber–Current position of the clip (exclusive with region)
projectstringyesPath to the .audium project package (absolute paths recommended)
regionstring–Region name of the clip
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
tonumber–Target timeline position (default: unchanged)
to_track––Target track id, or "new" to create a track
trackinteger–Track id
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

place_clip ~202

Creates a new clip from an existing named region at a timeline position, on the track that owns the region (track only disambiguates same-named regions).

NameTypeReqDescription
atnumberyesTimeline position for the new clip
projectstringyesPath to the .audium project package (absolute paths recommended)
regionstringyesName of the region to place
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackinteger–Track id, to disambiguate same-named regions
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

remove_channel ~162

Removes one channel (0-based) from a track, like deleting a channel strip in the GUI. Channel mappings and per-channel clip gains shift down; the audio files stay in the package.

NameTypeReqDescription
channelintegeryesChannel index within the track (0-based)
projectstringyesPath to the .audium project package (absolute paths recommended)
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackintegeryesTrack id

No output schema declared.

No examples provided.

remove_clip ~217

Removes the clip at a timeline position (one clip; ambiguity across tracks needs track), or every placement of a named region. delete_region also drops the region itself unless other clips use it.

NameTypeReqDescription
atnumber–Timeline position of the clip (exclusive with region)
delete_regionboolean–Also delete the region from the pool
projectstringyesPath to the .audium project package (absolute paths recommended)
regionstring–Region name; removes every placement
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackinteger–Track id
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

remove_track ~154

Removes a whole track from the project, including its channels, clips and regions. Track ids are positions in the track list, so the ids of the tracks below shift up by one. The audio files stay in the package.

NameTypeReqDescription
projectstringyesPath to the .audium project package (absolute paths recommended)
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackintegeryesTrack id

No output schema declared.

No examples provided.

report_bug ~255

Reports a bug in Audionaut to the maintainer as a GitHub issue. Use it when a tool misbehaves: an error that should not happen, a wrong or inconsistent result, a crash, or a project left in a bad state. Quote the exact tool call and error text - the CLI's code and message - and say what you expected instead; that is what makes the report reproducible. Never include the audio itself, and keep file paths to what is needed. Tell the user you are sending it; include their name or e-mail only if they offered it. If nothing could be sent, the reply carries a prefilled issue link to hand to the user.

NameTypeReqDescription
contextstring–Project shape (tracks, clips, sample rate), platform, anything else relevant
descriptionstringyesWhat happened, including the exact error text if there was one
expectedstring–What should have happened instead
reporterstring–The user's name or e-mail for follow-up, only if they offered it
stepsstring–How to reproduce it: the tool calls in order, with their arguments
titlestringyesOne-line summary of the problem

No output schema declared.

No examples provided.

request_feature ~206

Sends a feature request to the Audionaut maintainer as a GitHub issue. Use it when a task needs something the other tools cannot do: a missing verb or option, a limit that got in the way, or a workflow that took a clumsy workaround. Say what the user was trying to achieve and why the current tools fall short - that context is what makes the request actionable. Tell the user you are sending it; include their name or e-mail only if they offered it. If nothing could be sent, the reply carries a prefilled issue link to hand to the user.

NameTypeReqDescription
contextstring–What you were trying to do, which tool fell short, and any workaround used
descriptionstringyesWhat is missing, why it matters, and how it should behave
reporterstring–The user's name or e-mail for follow-up, only if they offered it
titlestringyesOne-line summary of the requested feature

No output schema declared.

No examples provided.

separate_stems ~268

Splits a clip into Drums/Bass/Other/Vocals tracks with the Demucs (htdemucs) source separator, aligned with the source clip. Slow: minutes for a full song, CPU only; reports progress in 5% steps when the call carries a progressToken. Needs the model weights, which the Audionaut app downloads once (Settings > Separation); fails with model_missing until then, and with demucs_unavailable in builds without Demucs.

NameTypeReqDescription
clipinteger–Playlist item id (default: the track's first clip)
mute_sourceboolean–Mute the source track's channels (default true)
projectstringyesPath to the .audium project package (absolute paths recommended)
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
threadsinteger–Parallel segments (default: physical cores)
trackinteger–Track id (default 0; imported audio lands on a new track)

No output schema declared.

No examples provided.

set_region ~252

Renames a region and/or retrims its source-relative range (clamped to the source audio). Clips have no length of their own, so a retrim affects every clip using the region.

NameTypeReqDescription
endnumber–New source-relative end (exclusive with length)
lengthnumber–New length, keeping the start
projectstringyesPath to the .audium project package (absolute paths recommended)
regionstringyesName of the region to edit
renamestring–New name (must not collide with an existing region)
startnumber–New source-relative start
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackinteger–Track id, to disambiguate same-named regions
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

split ~185

Splits the clip under the given timeline position into two on every track that has one there (the GUI's Split command). Fails with nothing_to_split when no clip spans the position.

NameTypeReqDescription
atnumberyesTimeline position to split at, e.g. 23 for bar 23
projectstringyesPath to the .audium project package (absolute paths recommended)
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
unitstring–Unit for positions (default bars; bars/beats are 1-based, seconds/clocks absolute)

No output schema declared.

No examples provided.

track_pan ~234

Sets the pan position of a track's channel strips, -1 (hard left) to 1 (hard right), 0 centred - the pan slider of the channel view. Every strip of the track by default, one with channel. A mono stem has one strip; a stereo import's two strips start at -1 and 1. Playback and export_audio both follow it; get_project_info shows the current pans per track.

NameTypeReqDescription
channelinteger–One channel strip (0-based; default: all)
pannumberyesPan position, -1 left .. 0 centre .. 1 right
projectstringyesPath to the .audium project package (absolute paths recommended)
taskstring–Name of the task this edit is part of, e.g. "remove speech pauses". In the open app, all edits with the same task name become one undo step: keep the name for every call of the task and change it whe…
trackintegeryesTrack id

No output schema declared.

No examples provided.

Install

How do I install the Audionaut MCP server?

Audionaut runs locally as an npm package, launched with npx -y audionaut-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

npm · audionaut-mcp

# add to Claude Code
claude mcp add kvoltmer-audionaut -- npx -y audionaut-mcp
Common questions

What is the Audionaut MCP server?

Audionaut is an MCP server listed in the public MCP registry as io.github.kvoltmer/audionaut. Edit Audionaut multitrack projects: cut, fade, analyse, export. Requires the Audionaut app. This page covers its npm package (audionaut-mcp).

Is the Audionaut MCP server safe to use?

Audionaut scores 80 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the Audionaut MCP server expose?

Audionaut exposes 23 tools: get_project_info, create_project, import_audio, export_audio, analyze, and 18 more. Their descriptions and schemas cost roughly 5,153 tokens of context every time the server is loaded.

Is the Audionaut MCP server still maintained?

Audionaut is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the Audionaut MCP server under?

Audionaut declares the GPL-3.0-or-later licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

What did VerifyMCP test on the Audionaut MCP server?

VerifyMCP ran 16 checks on Audionaut, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.