Atlas / MCP servers / rekordcloud / sonovault

sonovaultBLOCK

mcp/rekordcloud/sonovault-mcp

MCP server for the SonoVault music metadata API. Search 90M+ tracks, artists, and releases from AI assistants.

Verdict
BLOCK
Grade
D
Trust score
69 /100
Exposed tools
15 15r · 0w · 0d
Transport
stdio
License
MIT
Stars
0
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

[](https://github.com/rekordcloud/sonovault-mcp/actions/workflows/ci.yml) [](https://www.npmjs.com/package/sonovault-mcp)

MCP server for the [SonoVault](https://sonovault.now) music metadata API. Gives Claude, Cursor, and any MCP client search across 93M+ tracks, artists, labels, and releases, with full metadata per result: genre, label, release dates, artist credits, ISRC and ISWC codes, and cross-platform IDs (Spotify, Apple Music, Tidal, Beatport, Discogs, MusicBrainz, YouTube).

Ask your assistant things like:

  • "What releases did mau5trap put out this year?"
  • "Find Daft Punk's Veridis Quo and give me its genre, label, and ISRC"
  • "Show me the tracklist of Discovery with ISRCs"
  • "What's the Spotify and Beatport ID for ISRC GBDUW0000053?"
  • "Resolve this play log to ISRCs and labels" (paste up to 100 lines)
  • "List every recording of ISWC T-071.020.439-9"

Setup

You need a SonoVault API key. The free tier is 1,000 requests/month, no credit card: get a key.

Claude Desktop

Add to claude_desktop_config.json:

{
"mcpServers": {
"sonovault": {
"command": "npx",
"args": ["-y", "sonovault-mcp"],
"env": { "SONOVAULT_API_KEY": "svk_live_..." }
}
}
}

Claude Code

claude mcp add sonovault -e SONOVAULT_API_KEY=svk_live_... -- npx -y sonovault-mcp

Cursor

Add to ~/.cursor/mcp.json (or .cursor/mcp.json in your project):

{
"mcpServers": {
"sonovault": {
"command": "npx",
"args": ["-y", "sonovault-mcp"],
"env": { "SONOVAULT_API_KEY": "svk_live_..." }
}
}
}

VS Code (GitHub Copilot)

Add to .vscode/mcp.json:

{
"servers": {
"sonovault": {
"command": "npx",
"args": ["-y", "sonovault-mcp"],
"env": { "SONOVAULT_API_KEY": "svk_live_..." }
Read from source at commit 776ee366057bOBSERVED · 2026-10-12
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02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code (npm)
claude mcp add sonovault-mcp --env SONOVAULT_API_KEY=${SONOVAULT_API_KEY} -- npx -y [email protected]
03

Exposed tools (15)

15 read · 0 write · 0 destructive.

ToolRiskDescription
browse_tracksread
get_artist_releasesread
get_label_releasesread
get_platform_linksread
get_recordings_of_workread
get_releaseread
get_trackread
get_work_codesread
list_genresread
lookup_isrcread
resolve_tracksread
search_artistsread
search_labelsread
search_releasesread
search_tracksread
04

Trust audit

BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codePASS
L2Instruction surface (what it tells the agent)FAIL
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
not all pinned
Secrets in source
none-found

Findings (3)

HIGHPrompt injection · prompt.credential_read · CWE-94, CWE-1427
skill/SKILL.md:15
- Read the key from the `SONOVAULT_API_KEY` environment variable. If it is missing, tell the user to get a free key at https://sonovault.now (1,000 requests/month, no credit card) and export it.
Why it matters. asks the agent to read credentials
HIGHPrompt injection · prompt.hide_from_user · CWE-94, CWE-1427
skill/SKILL.md:90
- 401: bad or missing key. 403 with "paid" wording: the endpoint needs a paid tier (`/v1/tracks/browse`, audio identify). 429: rate limit (retry after the `Retry-After` header) or monthly credits exha
Why it matters. asks the agent to act without the user's knowledge
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
package.json
@modelcontextprotocol/sdk, sonovault, zod, @types/node, tsup, typescript, vitest
Why it matters. 7 dependency range(s) float
Fix. pin exact versions or ship a lockfile

Gates applied: instruction_override, no_behavioural_pass.

Audited 2026-10-12 · audit v0.4.1 · source sha 776ee366057bfull audit observations/trust-audit/mcp-server/rekordcloud__sonovault-mcp.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-12776ee366057bBLOCKD69first audit
06

Questions

What is the sonovault MCP server?

MCP server for the SonoVault music metadata API. Search 90M+ tracks, artists, and releases from AI assistants.

What tools does sonovault expose?

15 in total: 15 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is sonovault safe to connect to an agent?

No — not without reading the findings first. The audit graded it D (69/100) and found 2 critical or high issues in the source. Each one is listed on this page with the file and line it is on.

What credentials does sonovault need?

It reads SONOVAULT_API_KEY from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does sonovault run?

It speaks stdio, so it runs as a local process your client starts. It is published on npm as sonovault-mcp at 1.2.1.

How current is this page?

The grade is for one exact copy of the source (776ee366057b), read on 2026-10-12. The repository is watched and re-audited when it changes.

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