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

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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.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configPORT

configPYTHONPATH

configSYSTEMROOT

configVOICE_SOUNDBOARD_AMBIENT_ENABLED— Ephemeral 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

// 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 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)

commit: 99368f98dfe47733f28f757bb37183c79c24e2cc

code hash: f6877cb92e1db56168eaacd8af39650511b1e6c67f2fdf12ae9c9654bafdb572

verified: 6/21/2026, 10:17:26 AM

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