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Fretboard Voicing Explorer MCP Server

Enables interactive exploration of guitar chord voicings through an MCP server that provides tools for showing, evaluating, and analyzing chord voicings, with a host-agnostic UI widget for inline fretboard rendering.

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// key findings
⚠️
Known vulnerabilities in dependencies: 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
🔐
You'll be asked for 3 credentials: ANTHROPIC_API_KEY, GEMINI_API_KEY, OPENAI_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies3 high2 medium

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

highvite@8.0.0GHSA-fx2h-pf6j-xcff

vite: `server.fs.deny` bypass on Windows alternate paths

highvite@8.0.0GHSA-p9ff-h696-f583

Vite Vulnerable to Arbitrary File Read via Vite Dev Server WebSocket

highvite@8.0.0GHSA-v2wj-q39q-566r

Vite: `server.fs.deny` bypassed with queries

mediumvite@8.0.0GHSA-4w7w-66w2-5vf9

Vite Vulnerable to Path Traversal in Optimized Deps `.map` Handling

mediumvite@8.0.0GHSA-v6wh-96g9-6wx3

launch-editor: NTLMv2 hash disclosure via UNC path handling on Windows

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// required environment variables
This server reads these from process.env. You'll be asked to provide them before it can run.
🔐 secretANTHROPIC_API_KEYin .env.local (the chat route's Anthropic adapter reads it)
🔐 secretGEMINI_API_KEY
🔐 secretOPENAI_API_KEY
configSANDBOX_PORT
// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 8 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/jherr-ts-ai-mcp-apps-demo-1hvyyb)](https://m8ven.ai/mcp/jherr-ts-ai-mcp-apps-demo-1hvyyb)
commit: 12122f5784f4a8c5a561dc8b0f85eab9e1733e0d
code hash: a520988e9bf21e2ef5b2a986f157d5b4b22f6eb0a11eb8598bdc44b7d63a3fad
verified: 6/29/2026, 11:25:18 AM
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