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elad12390

notification-mcp

by elad12390
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notification-mcp

An MCP server that lets AI assistants send spoken audio notifications using high-quality AI voices. When an AI finishes a long task, it can call the notify tool to speak a message aloud — so you don't have to stare at the screen waiting.

Powered by Kokoro TTS (fast, expressive, 26 voices), with optional F5-TTS (higher quality, voice cloning) and macOS say (instant, no setup).

Quick Start

Prerequisites

  • macOS (notifications play via afplay)

  • Node.js 18+

  • uv — Python package runner (for Kokoro/F5-TTS)

    curl -LsSf https://astral.sh/uv/install.sh | sh

Install via npx

No installation needed — run directly with npx:

{
  "mcpServers": {
    "notification-mcp": {
      "command": "npx",
      "args": ["-y", "@elad12390/notification-mcp"]
    }
  }
}

Install from source

git clone https://github.com/elad12390/notification-mcp.git
cd notification-mcp
npm install
npm run build

Then configure your MCP client (see Configuration below).

Related MCP server: ntfy-me-mcp

Configuration

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "notification-mcp": {
      "command": "npx",
      "args": ["-y", "@elad12390/notification-mcp"]
    }
  }
}

OpenCode / Cursor / Other MCP Clients

{
  "mcpServers": {
    "notification-mcp": {
      "command": "npx",
      "args": ["-y", "@elad12390/notification-mcp"]
    }
  }
}

From source

{
  "mcpServers": {
    "notification-mcp": {
      "command": "node",
      "args": ["/path/to/notification-mcp/dist/index.js"]
    }
  }
}

The notify Tool

Once configured, the AI can call:

notify(message: "Hey! Build succeeded, all tests passed.")
notify(message: "Done. Your file has been exported.", title: "Export Complete")
notify(message: "Hmm... something looks off. Check the logs.", voice: "george")

Writing Expressive Messages

Kokoro reads punctuation expressively. Write like you'd want it spoken:

Punctuation

Effect

Example

!

Excited/energetic

"Great job!"

...

Long pause, thoughtful

"Wait... what?"

,

Brief natural pause

"Well, I think so"

?

Rising intonation

"Really?"

.

Sentence break

"Done. Everything worked."

Good examples:

"Hey! Your task is complete. Everything went smoothly."
"Hmm... I found something interesting. Check this out!"
"Done! The build succeeded, and all 47 tests passed."

Custom Pronunciation (IPA)

For words that need specific pronunciation, use [word](/IPA/] syntax:

"[Chaim](/χaim/) said hello"     → Hebrew name with guttural ח
"[Elad](/ɛlɑd/) is working"      → Pronounce as "eh-lahd"  
"The [route](/ruːt/) is clear"    → British-style pronunciation

Common IPA symbols: χ (Hebrew ח), ʃ (sh), ð (the), θ (think), ŋ (ng), ɹ (American r)

Voices

Kokoro Voices (default engine)

Use friendly aliases or full voice names:

Alias

Full Name

Accent

heart

af_heart

American Female

bella

af_bella

American Female

nicole

af_nicole

American Female

sarah

af_sarah

American Female

adam

am_adam

American Male

michael

am_michael

American Male

emma

bf_emma

British Female

george

bm_george

British Male

Additional full names: af_alloy, af_aoede, af_jessica, af_kore, af_nova, af_river, af_sky, am_echo, am_eric, am_fenrir, am_liam, am_onyx, am_puck, bf_alice, bf_isabella, bf_lily, bm_daniel, bm_fable, bm_lewis

TTS Engines

Set NOTIFICATION_METHOD to choose your engine:

Engine

Speed

Quality

Requires

kokoro (default)

~3–5s

Great, expressive

uv

f5tts

~10–15s

Highest, voice cloning

uv + FFmpeg

say

Instant

Robotic

Nothing (macOS built-in)

Environment Variables

Variable

Default

Description

NOTIFICATION_METHOD

kokoro

TTS engine: kokoro, f5tts, or say

KOKORO_VOICE

af_heart

Default Kokoro voice (alias or full name)

KOKORO_SPEED

1.0

Kokoro speech speed multiplier

F5TTS_SPEED

1.0

F5-TTS speech speed multiplier

F5TTS_REF_AUDIO

—

Path to reference audio file for voice cloning

F5TTS_REF_TEXT

—

Transcript of the reference audio

SAY_VOICE

Samantha

macOS say voice name

LOG_LEVEL

info

Log level: debug, info, warn, error, silent

MCP_METRICS_ENABLED

true

Enable/disable usage metrics

Example: Use a British male voice by default

{
  "mcpServers": {
    "notification-mcp": {
      "command": "npx",
      "args": ["-y", "@elad12390/notification-mcp"],
      "env": {
        "KOKORO_VOICE": "bm_george",
        "KOKORO_SPEED": "1.1"
      }
    }
  }
}

Example: Use F5-TTS with custom voice cloning

{
  "mcpServers": {
    "notification-mcp": {
      "command": "npx",
      "args": ["-y", "@elad12390/notification-mcp"],
      "env": {
        "NOTIFICATION_METHOD": "f5tts",
        "F5TTS_REF_AUDIO": "/path/to/your-voice.wav",
        "F5TTS_REF_TEXT": "Transcript of what is said in that audio file."
      }
    }
  }
}

Development

# Install dependencies
npm install

# Development with hot reload
npm run dev

# Build
npm run build

# Run tests
npm test

# Run with coverage
npm run test:coverage

License

MIT

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maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

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