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PopNx MCPMCP servers for people who use AI · explained in plain words

Vox

by boskaversion 1.0.0i★ –iRuns on your computer
Registry nameio.github.boska/vox

Install

Overview

Description from the maker (original English)

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

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Design, images & audio
  • You need to fill in: ELEVENLABS_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: ELEVENLABS_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Download the maker’s .mcpb file

The link goes to the maker’s own file; we do not host or repackage it. Open the file and Claude Desktop installs it.

Run this in your terminal

Fill in the empty values before running it.

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • ELEVENLABS_API_KEY secret env
    ElevenLabs API key for high-quality TTS. Optional — falls back to macOS system voice if not set.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account boska, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Design, images & audioi

  • More stars than 0% of the other 2187 servers in this category
  • Published to the registry more recently than 8% of the other 2187 servers in this category
  • Basic checks equal to or better than 100% of the other 2187 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Vox safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: ELEVENLABS_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 6 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need MCPB on your computer.

What can I use instead?

In the same category: Figma Context MCP, Claude Real Video, Figma MCP Server

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Give your coding agent access to your Figma data. Implement designs in any framework in one-shot.

Runs on your computer★ 16,165MITUpdated 5 months ago
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Claude Real Video

by HUANGCHIHHUNGLeo

Let any LLM watch a video locally — and search everything it has ever watched.

Runs on your computer★ 2,284MITUpdated 2 months ago
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Figma’s official server gives AI your design data so it can turn designs into code or describe them accurately. Connects to Figma’s cloud.

Runs in the cloud★ 2,152Updated 13 months ago
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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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.

{

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

Then just say: listen — and Claude hears you.


Tools

ToolWhat it does
listenActivates the mic, waits for you to speak, returns transcript + detected language when silence is detected
speakSpeaks 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:

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
  1. Add to ~/.claude.json in the mcpServers section: { "mcpServers": { "vox": { "command": "/Users/$(whoami)/vox" } } }
  1. Restart Claude Code
  1. Test it by saying: listen

Claude will handle the download, configuration, and restart.

Option 2: Manual Install (Pre-built Binary)
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:

{

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

Restart Claude Code.

Option 3: Build from Source
git clone https://github.com/boska/vox

cd vox swift build -c release --product vox

Add to ~/.claude.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

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.

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