Vox

Native macOS MCP server for voice I/O — Swift binary, SFSpeechRecognizer + ElevenLabs TTS.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "vox": {
      "command": "npx",
      "args": [
        "-y",
        "vox"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

vox

A native macOS MCP server that gives Claude a voice.

Built in Swift. No Node.js. No Python. No Electron. Just a single binary.

config.json

{
  "mcpServers": {
    "vox": {
      "command": "/path/to/vox"
    }
  }
}

Then just say: listen — and Claude hears you.

Tools

Tool	What it does
`listen`	Activates the mic, waits for you to speak, returns transcript + detected language when silence is detected
`speak`	Speaks text aloud — ElevenLabs TTS with automatic fallback to macOS system voice

Why Swift + macOS only

AVFoundation — native mic capture, zero overhead
SFSpeechRecognizer — Apple on-device speech recognition, works offline, 50+ languages
NLLanguageRecognizer — automatic language detection per utterance
AVSpeechSynthesizer — built-in TTS fallback, no API key needed
Single ~200KB binary. Zero npm install. Zero Python venv.

Requirements

macOS 13+
Microphone set as default in System Settings → Sound → Input
Microphone + Speech Recognition permission for your terminal app
Optional: ELEVENLABS_API_KEY in ~/.claude/.env for high-quality multilingual TTS

Install

Option 1: Prompt for Claude Code

Copy and paste this into Claude Code:

Code

Install vox (native macOS voice input/output MCP server):

1. Download the code-signed binary to ~/vox:
   curl -L https://github.com/boska/vox/releases/download/v1.1.0/vox-1.1.0-darwin-arm64 -o ~/vox && chmod +x ~/vox

2. Add to ~/.claude.json in the mcpServers section:
   {
     "mcpServers": {
       "vox": {
         "command": "/Users/$(whoami)/vox"
       }
     }
   }

3. Restart Claude Code

4. Test it by saying: listen

Claude will handle the download, configuration, and restart.

Option 2: Manual Install (Pre-built Binary)

Terminal

curl -L https://github.com/boska/vox/releases/download/v1.1.0/vox-1.1.0-darwin-arm64 -o ~/vox && chmod +x ~/vox

Then add to ~/.claude.json:

config.json

{
  "mcpServers": {
    "vox": {
      "command": "/Users/$(whoami)/vox"
    }
  }
}

Restart Claude Code.

Option 3: Build from Source

bash

git clone https://github.com/boska/vox
cd vox
swift build -c release --product vox

Add to ~/.claude.json:

config.json

{
  "mcpServers": {
    "vox": {
      "command": "/path/to/vox/.build/release/vox"
    }
  }
}

Restart Claude Code.

Voice

Default TTS voice is Hana via ElevenLabs (eleven_multilingual_v2). Supports Chinese, English, Czech, Vietnamese, and 20+ languages in the same voice. Without an ElevenLabs key, falls back to macOS system voice automatically.

How it works

Code

Claude Code
    ↓ JSON-RPC 2.0 over stdio
  vox binary
    ↓                        ↑
AVAudioEngine        AVSpeechSynthesizer
SFSpeechRecognizer       ElevenLabs API
NLLanguageRecognizer

No ports. No sockets. No daemon. Just stdin/stdout.

Troubleshooting

"No speech detected" — speak within ~1s of calling listen, VAD cuts off after 0.8s silence.

No default input device — Mac mini has no built-in mic. Connect USB/Bluetooth mic or iPhone via Continuity Camera, set default in System Settings → Sound → Input.

ElevenLabs silent — add ELEVENLABS_API_KEY=sk-... to ~/.claude/.env, or leave it out to use system voice.

Read the full README →View source on GitHub →

Related MCP Servers

View all in Text-to-Speech View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Vox

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "vox": { "command": "npx", "args": ["-y", "vox"] } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/vox?style=directory)](https://allmcps.com/mcp/vox)

HTML Embed

<a href="https://allmcps.com/mcp/vox"><img src="https://allmcps.com/api/badge/vox?style=directory" alt="Vox on AllMCPs" /></a>

Technical Specs & Signals

CategoryText-to-Speech

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

★ Spotlight Slot

Feature Your MCP Server

Get maximum visibility for your server across our directory, search results, and detail pages.

Spotlight Your Server

Own this project?

This directory is pre-filled from public sources. Claim via GitHub README, site badge, or DNS TXT to unlock edit access and the Official badge and attach your website — proof is checked automatically, then reviewed by our team.

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 🎧 Text-to-Speech →Alternatives to Vox →Install in Claude Desktop Install in Cursor Install in VS Code

Vox

Native macOS MCP server for voice I/O — Swift binary, SFSpeechRecognizer + ElevenLabs TTS.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "vox": {
      "command": "npx",
      "args": [
        "-y",
        "vox"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

vox

A native macOS MCP server that gives Claude a voice.

Built in Swift. No Node.js. No Python. No Electron. Just a single binary.

config.json

{
  "mcpServers": {
    "vox": {
      "command": "/path/to/vox"
    }
  }
}

Then just say: listen — and Claude hears you.

Tools

Tool	What it does
`listen`	Activates the mic, waits for you to speak, returns transcript + detected language when silence is detected
`speak`	Speaks text aloud — ElevenLabs TTS with automatic fallback to macOS system voice

Why Swift + macOS only

AVFoundation — native mic capture, zero overhead
SFSpeechRecognizer — Apple on-device speech recognition, works offline, 50+ languages
NLLanguageRecognizer — automatic language detection per utterance
AVSpeechSynthesizer — built-in TTS fallback, no API key needed
Single ~200KB binary. Zero npm install. Zero Python venv.

Requirements

macOS 13+
Microphone set as default in System Settings → Sound → Input
Microphone + Speech Recognition permission for your terminal app
Optional: ELEVENLABS_API_KEY in ~/.claude/.env for high-quality multilingual TTS

Install

Option 1: Prompt for Claude Code

Copy and paste this into Claude Code:

Code

Install vox (native macOS voice input/output MCP server):

1. Download the code-signed binary to ~/vox:
   curl -L https://github.com/boska/vox/releases/download/v1.1.0/vox-1.1.0-darwin-arm64 -o ~/vox && chmod +x ~/vox

2. Add to ~/.claude.json in the mcpServers section:
   {
     "mcpServers": {
       "vox": {
         "command": "/Users/$(whoami)/vox"
       }
     }
   }

3. Restart Claude Code

4. Test it by saying: listen

Claude will handle the download, configuration, and restart.

Option 2: Manual Install (Pre-built Binary)

Terminal

curl -L https://github.com/boska/vox/releases/download/v1.1.0/vox-1.1.0-darwin-arm64 -o ~/vox && chmod +x ~/vox

Then add to ~/.claude.json:

config.json

{
  "mcpServers": {
    "vox": {
      "command": "/Users/$(whoami)/vox"
    }
  }
}

Restart Claude Code.

Option 3: Build from Source

bash

git clone https://github.com/boska/vox
cd vox
swift build -c release --product vox

Add to ~/.claude.json:

config.json

{
  "mcpServers": {
    "vox": {
      "command": "/path/to/vox/.build/release/vox"
    }
  }
}

Restart Claude Code.

Voice

How it works

Code

Claude Code
    ↓ JSON-RPC 2.0 over stdio
  vox binary
    ↓                        ↑
AVAudioEngine        AVSpeechSynthesizer
SFSpeechRecognizer       ElevenLabs API
NLLanguageRecognizer

No ports. No sockets. No daemon. Just stdin/stdout.

Troubleshooting

"No speech detected" — speak within ~1s of calling listen, VAD cuts off after 0.8s silence.

No default input device — Mac mini has no built-in mic. Connect USB/Bluetooth mic or iPhone via Continuity Camera, set default in System Settings → Sound → Input.

ElevenLabs silent — add ELEVENLABS_API_KEY=sk-... to ~/.claude/.env, or leave it out to use system voice.

Read the full README →View source on GitHub →

Related MCP Servers

View all in Text-to-Speech View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Vox

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "vox": { "command": "npx", "args": ["-y", "vox"] } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/vox?style=directory)](https://allmcps.com/mcp/vox)

HTML Embed

<a href="https://allmcps.com/mcp/vox"><img src="https://allmcps.com/api/badge/vox?style=directory" alt="Vox on AllMCPs" /></a>

Technical Specs & Signals

CategoryText-to-Speech

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

★ Spotlight Slot

Feature Your MCP Server

Get maximum visibility for your server across our directory, search results, and detail pages.

Spotlight Your Server

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 🎧 Text-to-Speech →Alternatives to Vox →Install in Claude Desktop Install in Cursor Install in VS Code