MCP Voice Soundboard (mcp-tool-shop-org/mcp-voice-soundboard) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.

Back to MCP Trust Indexm8ven
C
Emerging
74/100
2 months ago

MCP Voice Soundboard

A text-to-speech MCP server with 48 voices across 9 languages, supporting emotion spans, SFX tags, and multi-speaker dialogue. Deployable via a single npx command with built-in guardrails and swappable backends.

→ mcp-tool-shop-org/mcp-voice-soundboard· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code Verified⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

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Who stands behind it

mcp-tool-shop-org

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

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Install from

Glama

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// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 4 credentials: VOICE_SOUNDBOARD_TTS_TOKEN, AZURE_SPEECH_KEY, ELEVENLABS_API_KEY, OPENAI_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// 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.
configPYTHONPATH
configSYSTEMROOT
configVOICE_SOUNDBOARD_AMBIENT_ENABLEDEphemeral micro-utterances for ambient narration. Requires --ambient flag or =1.
configVOICE_SOUNDBOARD_HTTP_TIMEOUT
configVOICE_SOUNDBOARD_OUTPUT_DIR
configVOICE_SOUNDBOARD_PYTHON
configVOICE_SOUNDBOARD_PYTHON_MODULE
🔐 secretVOICE_SOUNDBOARD_TTS_TOKEN
configVOICE_SOUNDBOARD_TTS_URL
configVOICE_SOUNDBOARD_MODELS
🔐 secretAZURE_SPEECH_KEY
configAZURE_SPEECH_REGION
🔐 secretELEVENLABS_API_KEY
🔐 secretOPENAI_API_KEY
configPIPER_VOICES_DIR
configAzureWebJobsStorage
configGCP_PROJECT
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployPORT
// 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

5/5 tools missing one or more hints — voice_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); voice_speak (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); voice_interrupt (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +2 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.

Tool inputs are validated

4/5 tool handlers declare input schemas (80%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

Only 2/5 tool handlers wrap calls in try/catch (40%)

Wrap each tool handler body in try/catch and return a structured error response.

Tool test coverage

3/5 tools referenced in tests (60%)

Write tests that reference each tool by name so every tool has at least one test.

Shell command execution

2 child_process calls — runs shell commands

Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.

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 6 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/mcp-tool-shop-org-mcp-voice-soundboard-0yom2r)](https://m8ven.ai/mcp/mcp-tool-shop-org-mcp-voice-soundboard-0yom2r)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: 99368f98dfe47733f28f757bb37183c79c24e2cc
code hash: f6877cb92e1db56168eaacd8af39650511b1e6c67f2fdf12ae9c9654bafdb572
verified: 6/21/2026, 10:17:26 AM
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