Voice Bridge

Name: Voice Bridge
Author: Tomorrow-You

by Tomorrow-Youversion 0.1.5i★ –iRuns on your computer

Registry nameio.github.dwarmerdam/voice-bridge

Install

Overview

Description from the maker (original English)

Multi-engine TTS for AI coding assistants. 5 engines, free engine included.

PopNx MCP’s three pillars

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

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi0 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

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: Developer tools

Install

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

Before you install

Basic checks: 0 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "voice-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "ai-voice-bridge"
      ]
    }
  }
}

Run this in your terminal

claude mcp add voice-bridge -- npx -y ai-voice-bridge

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "voice-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "ai-voice-bridge"
      ]
    }
  }
}

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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "voice-bridge": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "ai-voice-bridge"
      ]
    }
  }
}

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.

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

! Caution
Maker matches the repo
The publisher (dwarmerdam) is not the repo owner (Tomorrow-You); someone else may have listed it
… 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 Developer toolsi

More stars than 0% of the other 4898 servers in this category
Published to the registry more recently than 12% of the other 4898 servers in this category
Basic checks equal to or better than 17% of the other 4898 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 Voice Bridge safe?

It passed 0 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?

The registry does not list a required key, though some servers ask you to sign in on first use.

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 (0.1.5) 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 Node.js, Python (uv) on your computer.

What can I use instead?

In the same category: GitHub, Desktop Commander, Cloudflare MCP

Alternatives

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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.

Voice Bridge

Multi-engine text-to-speech for AI coding assistants. Speaks responses aloud from Claude Code, Cursor, or VS Code via a Claude Code plugin, MCP server, or CLI pipe.

pip install ai-voice-bridge[edge]   # Install with free edge-tts engine

voice-bridge test # Verify audio output voice-bridge on # Enable always-on mode (optional)

Features

Free by default -- edge-tts uses Microsoft Neural voices, no API key needed
5 engines -- edge-tts, ElevenLabs, Kokoro (local ONNX), macOS say, espeak-ng
Text safety filter -- strips code blocks, secrets, file paths, URLs, and markdown before speaking
Claude Code plugin -- Stop hook speaks responses automatically, MCP server for tool-based control
Voice discovery -- browse, filter by gender/locale, and preview voices interactively

Prerequisites

Voice Bridge is a Python package that plays audio on your local machine. It requires:

Requirement	Details
Python 3.10+	`python3 --version` to check
pip	Usually bundled with Python. On some Linux distros: `sudo apt install python3-pip`
Audio output	Speakers or headphones — audio plays locally, not over a network
Audio player (Linux/Windows)	macOS: built-in (`afplay`). Linux: `mpv` (preferred) or `ffplay`. Windows: `ffplay` (preferred) or `mpv`

Audio player fallback order: macOS uses afplay (always available). Linux tries mpv then ffplay. Windows tries ffplay then mpv.

Not supported: headless servers, Docker containers, SSH sessions, and CI runners typically lack audio output. Voice Bridge will install and run the MCP server, but speak commands will fail silently without an audio player and sound hardware.

Quick Start

Install

# Recommended: edge-tts (free, 400+ voices)

pip install ai-voice-bridge[edge]

Or with all engines

pip install ai-voice-bridge[all]

Or minimal (macOS say / Linux espeak only)

pip install ai-voice-bridge

Test

voice-bridge test          # Speak a test phrase

voice-bridge engines # List available engines voice-bridge setup # Interactive setup wizard

The setup wizard walks you through: detecting installed engines, testing audio output, optionally entering an ElevenLabs API key (if the SDK is installed), writing default state, and showing Claude Code integration options.

Use

# Pipe text to speech

echo "Hello world" | vb-speak

Choose an engine

echo "Hello" | vb-speak --engine edge-tts echo "Hello" | vb-speak --engine say

Modes

voice-bridge on # Always-on: every AI response spoken voice-bridge off # Off: use "speak" keyword for single responses voice-bridge status # Show current mode and engine

Claude Code Integration

Option 1: Install as a Plugin (Recommended)

claude plugin marketplace add Tomorrow-You/voice-bridge

claude plugin install voice-bridge@voice-bridge

This installs the plugin with a Stop hook (auto-speaks responses), the /speak skill, and the MCP server. Auto-installs ai-voice-bridge[edge,mcp] on first session.

Option 2: Manual Hook Setup

Add to your .claude/settings.json:

"hooks": { "Stop": [ { "hooks": [ { "type": "command", "command": "bash -c 'VB_HOOK=$(python3 -c \"import voice_bridge; import pathlib; print(pathlib.Path(voice_bridge.file).parent / \\\"integrations\\\" / \\\"claude_hook.sh\\\")\" 2>/dev/null) && [ -f \"$VB_HOOK\" ] && bash \"$VB_HOOK\"'", "timeout": 5 } ] } ] } }

Then add to your CLAUDE.md:

## Voice Bridge (TTS)

NEVER use tags unless the user's message starts with "speak"
When user starts with "speak", wrap your ENTIRE response in ... tags
Strip the "speak" keyword before processing
Inside tags, write naturally -- no markdown, code blocks, or file paths

Option 2: Always-On Mode

Skip the tag convention entirely:

voice-bridge on

Now every Claude response is spoken automatically. Toggle off with voice-bridge off.

Hook Details

The Stop hook runs in the background so it doesn't block Claude Code. It:

Extracts text from tags (single-turn mode) or the full response (always-on mode)
Truncates to 2,000 characters before speaking
Uses a fallback chain: configured engine > espeak > say
Logs to ~/.voice-bridge/voice-bridge.log (auto-rotated at 1MB, keeps 2 backups)
Runs vb-speak --stream for sentence-by-sentence playback

Engines

Engine	Cost	Quality	Setup	Platform	Default voice
edge-tts	Free	High (neural)	`pip install ai-voice-bridge[edge]`	All	`en-US-GuyNeural`
ElevenLabs	Paid	Highest	`pip install ai-voice-bridge[elevenlabs]` + API key	All	George (`JBFqnCBsd6RMkjVDRZzb`), model `eleven_flash_v2_5`
Kokoro	Free	Good	`pip install ai-voice-bridge[kokoro]` + model download	All (English only)	`bm_lewis`
say	Free	Basic	Built-in	macOS	`Samantha`
espeak	Free	Basic	`apt install espeak-ng`	Linux	`en`

When engine is set to auto (default), Voice Bridge picks the first available in this order: edge-tts > say > espeak > kokoro > elevenlabs. ElevenLabs is only considered "available" if the SDK is installed AND a valid API key is configured -- it will never be auto-selected without credentials.

Discovering Voices

voice-bridge voices              # List voices for current engine

voice-bridge voices edge-tts # List voices for a specific engine

Filter by gender and/or locale

voice-bridge voices edge-tts --gender Female --locale en-US

Preview a specific voice

voice-bridge voices edge-tts --preview en-US-AriaNeural

Interactively audition voices (next/select/quit after each)

voice-bridge voices edge-tts --gender Female --locale en-US --preview

Random sample of 3 voices

voice-bridge voices edge-tts --sample 3 --preview

Filtering options: --gender (Male/Female) works with edge-tts and kokoro. --locale (e.g. en-US, en-GB) works with edge-tts and say. --sample N picks N random voices. All combine with --preview for interactive audition.

ElevenLabs preview uses free pre-recorded samples when available (no API credits consumed).

Switching Engines

voice-bridge engine edge-tts     # Free neural voices

voice-bridge engine elevenlabs # Premium cloud voice-bridge engine kokoro # Local offline voice-bridge engine say # macOS built-in voice-bridge engine espeak # Linux built-in voice-bridge engine auto # Best available (default)

ElevenLabs Setup

pip install ai-voice-bridge[elevenlabs]

voice-bridge setup # Prompts for your ElevenLabs API key

Or manually: create ~/.voice-bridge/.env with ELEVENLABS_API_KEY=your-key

voice-bridge engine elevenlabs voice-bridge test

Kokoro Setup (Offline)

pip install ai-voice-bridge[kokoro]

Download model files (~200MB) from:

https://github.com/thewh1teagle/kokoro-onnx/releases/tag/model-files-v1.0

Place in: ~/.voice-bridge/models/ (or $VOICE_BRIDGE_HOME/models/)

voice-bridge engine kokoro voice-bridge test

Configuration

Voice Bridge stores configuration in ~/.voice-bridge/ (macOS), ~/.local/share/voice-bridge/ (Linux, respects XDG_DATA_HOME), or %APPDATA%\voice-bridge\ (Windows).

Override with the VOICE_BRIDGE_HOME environment variable.

File	Purpose
`.env`	API keys (ElevenLabs)
`.state`	Runtime state (mode, engine, speed, voice)
`models/`	Kokoro ONNX model files
`voice-bridge.log`	Hook execution logs (auto-rotated at 1MB, 2 backups)

State Variables

The .state file is a shell-sourceable key-value file. All values are optional — defaults apply if unset.

Variable	Default	Description
`VOICE_BRIDGE_MODE`	`off`	Mode: `off` (single-turn) or `always` (always-on)
`VOICE_BRIDGE_ENGINE`	`auto`	Engine name or `auto`
`VOICE_BRIDGE_EDGE_VOICE`	`en-US-GuyNeural`	edge-tts voice
`VOICE_BRIDGE_EDGE_RATE`	`+0%`	edge-tts rate (e.g. `+30%`, `-10%`)
`VOICE_BRIDGE_ELEVENLABS_SPEED`	`1.0`	ElevenLabs speed (0.7–1.2)
`VOICE_BRIDGE_KOKORO_VOICE`	`bm_lewis`	Kokoro voice name
`VOICE_BRIDGE_KOKORO_SPEED`	`1.4`	Kokoro speed multiplier
`VOICE_BRIDGE_SAY_RATE`	`200`	macOS say words per minute
`VOICE_BRIDGE_ESPEAK_RATE`	`175`	espeak words per minute

Text Safety Filter

Before any text reaches the TTS engine, Voice Bridge strips:

Code blocks (fenced ` and inline `)
Secrets: OpenAI/Anthropic keys (sk-...), GitHub tokens (ghp_, gho_), AWS keys (AKIA...), PEM private keys, 64+ char hex strings
File paths: Unix (/Users/..., /home/...) and Windows (C:\Users\...)
URLs: http:// and https://
Markdown: headers, bold/italic markers, list bullets, table rows

Text is truncated to 4,000 characters at the nearest sentence boundary (. ). The Claude hook applies a separate 2,000 character limit before passing text to vb-speak.

CLI Reference

# Control

voice-bridge on # Always-on mode voice-bridge off # Single-turn mode (default) voice-bridge status # Show mode, engine, config voice-bridge test # Test audio output voice-bridge engines # List all engines with install status voice-bridge setup # Interactive setup wizard

Engine config

voice-bridge engine [name] # Get/set engine voice-bridge voice [id] # Set voice for current engine voice-bridge voices [engine] # List available voices voice-bridge speed [val] # Set engine speed (see below)

Voice discovery

voice-bridge voices edge-tts --gender Female --locale en-US # Filter voice-bridge voices edge-tts --preview en-US-AriaNeural # Preview one voice-bridge voices edge-tts --gender Female --preview # Interactive voice-bridge voices edge-tts --sample 3 --preview # Random sample

Pipe to speech

echo "text" | vb-speak # Default engine echo "text" | vb-speak --engine edge-tts # Specific engine echo "text" | vb-speak --voice Aria # Override voice for this call echo "text" | vb-speak --stream # Stream sentence-by-sentence echo "text" | vb-speak --dry-run # Print filtered text only

Streaming mode (--stream): reads stdin, splits text at sentence boundaries (. , ! , ? ), and speaks each sentence as it completes. For edge-tts, sentences are queued so the next one generates while the current one plays.

Speed Control

Each engine accepts a different speed format:

Engine	Format	Default	Example
edge-tts	Percentage string	`+0%`	`voice-bridge speed +30%`
elevenlabs	Float (0.7–1.2)	`1.0`	`voice-bridge speed 1.1`
kokoro	Positive float	`1.4`	`voice-bridge speed 1.8`
say	Words per minute	`200`	`voice-bridge speed 250`
espeak	Words per minute	`175`	`voice-bridge speed 220`

Speed applies to whichever engine is currently active. Check with voice-bridge speed (no value).

MCP Server

Voice Bridge includes an MCP (Model Context Protocol) server so any MCP-compatible tool can speak text aloud.

npm shim (`npx ai-voice-bridge`): The npm package is a thin wrapper t

Only the beginning is shown; read the rest in the repo

Voice Bridge

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Developer toolsi

Common questions

Alternatives

GitHub

Desktop Commander

Cloudflare MCP

README from the maker

Voice Bridge

Features

Prerequisites

Quick Start

Install

Or with all engines

Or minimal (macOS say / Linux espeak only)

Test

Use

Choose an engine

Modes

Claude Code Integration

Option 1: Install as a Plugin (Recommended)

Option 2: Manual Hook Setup

Option 2: Always-On Mode

Hook Details

Engines

Discovering Voices

Filter by gender and/or locale

Preview a specific voice

Interactively audition voices (next/select/quit after each)

Random sample of 3 voices

Switching Engines

ElevenLabs Setup

Or manually: create ~/.voice-bridge/.env with ELEVENLABS_API_KEY=your-key

Kokoro Setup (Offline)

Download model files (~200MB) from:

https://github.com/thewh1teagle/kokoro-onnx/releases/tag/model-files-v1.0

Place in: ~/.voice-bridge/models/ (or $VOICE_BRIDGE_HOME/models/)

Configuration

State Variables

Text Safety Filter

CLI Reference

Engine config

Voice discovery

Pipe to speech

Speed Control

MCP Server