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ttsstt-mcp-server

Enables speech-to-text and text-to-speech conversion using OpenAI-compatible APIs. Supports customizable models, voices, and output directories.

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// key findings
⚠️
Tool descriptions don’t match what handlers do
1 tool describes read intent but its handler mutates — tts (line 227: fs.writeFileSync(outputPath, Buffer.from(response.data)))
🚨
Known vulnerabilities in dependencies: 1 critical, 17 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 4 credentials: OPENAI_STT_API_KEY, OPENAI_TTS_API_KEY, STT_API_KEY, TTS_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 critical17 high12 low

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

criticalform-data@4.0.0GHSA-fjxv-7rqg-78g4

form-data uses unsafe random function in form-data for choosing boundary

high@modelcontextprotocol/sdk@1.0.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.0.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highaxios@1.6.0GHSA-35jp-ww65-95wh

axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

highaxios@1.6.0GHSA-3g43-6gmg-66jw

axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// required environment variables
This server reads these from process.env. You'll be asked to provide them before it can run.
🔐 secretOPENAI_STT_API_KEY— OPENAI_STT_URL, , OPENAI_STT_MODEL, OPENAI_STT_RESPONSE_FORMAT
configOPENAI_STT_MODEL— OPENAI_STT_URL, OPENAI_STT_API_KEY, , OPENAI_STT_RESPONSE_FORMAT
configOPENAI_STT_RESPONSE_FORMAT— OPENAI_STT_URL, OPENAI_STT_API_KEY, OPENAI_STT_MODEL,
configOPENAI_STT_URL— , OPENAI_STT_API_KEY, OPENAI_STT_MODEL, OPENAI_STT_RESPONSE_FORMAT
🔐 secretOPENAI_TTS_API_KEY— OPENAI_TTS_URL, , OPENAI_TTS_MODEL, OPENAI_TTS_VOICE, OPENAI_TTS_SPEED, OPENAI_TTS_PITCH, OPENAI_TTS_OUTPUT_DIR
configOPENAI_TTS_MODEL— OPENAI_TTS_URL, OPENAI_TTS_API_KEY, , OPENAI_TTS_VOICE, OPENAI_TTS_SPEED, OPENAI_TTS_PITCH, OPENAI_TTS_OUTPUT_DIR
configOPENAI_TTS_PITCH— OPENAI_TTS_URL, OPENAI_TTS_API_KEY, OPENAI_TTS_MODEL, OPENAI_TTS_VOICE, OPENAI_TTS_SPEED, , OPENAI_TTS_OUTPUT_DIR
configOPENAI_TTS_SPEED— OPENAI_TTS_URL, OPENAI_TTS_API_KEY, OPENAI_TTS_MODEL, OPENAI_TTS_VOICE, , OPENAI_TTS_PITCH, OPENAI_TTS_OUTPUT_DIR
configOPENAI_TTS_URL— , OPENAI_TTS_API_KEY, OPENAI_TTS_MODEL, OPENAI_TTS_VOICE, OPENAI_TTS_SPEED, OPENAI_TTS_PITCH, OPENAI_TTS_OUTPUT_DIR
configOPENAI_TTS_VOICE— OPENAI_TTS_URL, OPENAI_TTS_API_KEY, OPENAI_TTS_MODEL, , OPENAI_TTS_SPEED, OPENAI_TTS_PITCH, OPENAI_TTS_OUTPUT_DIR
🔐 secretSTT_API_KEY— API key for STT service (required)
configSTT_MODEL— STT model name whisper-1
configSTT_RESPONSE_FORMAT— Response format (json, text, srt, verbose_json, vtt) json
configSTT_URL— OpenAI-compatible STT API endpoint URL (required)
🔐 secretTTS_API_KEY— API key for TTS service (required)
configTTS_MODEL— TTS model name (tts-1, tts-1-hd, gpt-4o-mini-tts) tts-1
configTTS_OUTPUT_DIR— Directory to save generated audio files ./tts_output
configTTS_PITCH— Pitch adjustment 1.0
configTTS_SPEED— Speech speed (0.25 to 4.0) 1.0
configTTS_URL— OpenAI-compatible TTS API endpoint URL (required)
configTTS_VOICE— Voice to use (alloy, echo, fable, onyx, nova, shimmer) alloy
// 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/ptbsare-ttsstt-mcp-server-19stqt)](https://m8ven.ai/mcp/ptbsare-ttsstt-mcp-server-19stqt)
commit: 8b119d6b95bcd5f3c852b2779b4a866d600be076
code hash: f85e9f347205128eff8420982fc02766912c119105ab88d7afe8a4d2b8d6b146
verified: 6/20/2026, 9:10:18 AM
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