@alanse/fish-audio-mcp-server
Advanced tools
An MCP (Model Context Protocol) server that provides seamless integration between Fish Audio's Text-to-Speech API and LLMs like Claude, enabling natural language-driven speech synthesis.
You can run this MCP server directly using npx:
npx @alanse/fish-audio-mcp-server
Or install it globally:
npm install -g @alanse/fish-audio-mcp-server
Get your Fish Audio API key from Fish Audio
Set up environment variables:
export FISH_API_KEY=your_fish_audio_api_key_here
{
"mcpServers": {
"fish-audio": {
"command": "npx",
"args": ["-y", "@alanse/fish-audio-mcp-server"],
"env": {
"FISH_API_KEY": "your_fish_audio_api_key_here",
"FISH_MODEL_ID": "s1",
"FISH_REFERENCE_ID": "your_voice_reference_id_here",
"FISH_OUTPUT_FORMAT": "mp3",
"FISH_STREAMING": "false",
"FISH_LATENCY": "balanced",
"FISH_MP3_BITRATE": "128",
"FISH_AUTO_PLAY": "false"
}
}
}
}
| Variable | Description | Default | Required |
|---|---|---|---|
FISH_API_KEY | Your Fish Audio API key | - | ✅ |
FISH_MODEL_ID | TTS model to use (s1, speech-1.5, speech-1.6) | s1 | ❌ |
FISH_REFERENCE_ID | Default voice reference ID | - | ❌ |
FISH_OUTPUT_FORMAT | Default audio format (mp3, wav, pcm, opus) | mp3 | ❌ |
FISH_STREAMING | Enable HTTP streaming by default | false | ❌ |
FISH_LATENCY | Latency mode (normal, balanced) | balanced | ❌ |
FISH_MP3_BITRATE | MP3 bitrate (64, 128, 192) | 128 | ❌ |
FISH_AUTO_PLAY | Automatically play generated audio | false | ❌ |
AUDIO_OUTPUT_DIR | Directory for audio file output | ~/.fish-audio-mcp/audio_output | ❌ |
Once configured, the Fish Audio MCP server provides the fish_audio_tts tool to LLMs.
fish_audio_ttsGenerates speech from text using Fish Audio's TTS API.
text (required): Text to convert to speech (max 10,000 characters)reference_id (optional): Voice model reference IDstreaming (optional): Enable streaming modeformat (optional): Output format (mp3, wav, pcm, opus)mp3_bitrate (optional): MP3 bitrate (64, 128, 192)normalize (optional): Enable text normalization (default: true)latency (optional): Latency mode (normal, balanced)output_path (optional): Custom output file pathauto_play (optional): Automatically play the generated audiowebsocket_streaming (optional): Use WebSocket streaming instead of HTTPrealtime_play (optional): Play audio in real-time during WebSocket streamingUser: "Generate speech saying 'Hello, world! Welcome to Fish Audio TTS.'"
Claude: I'll generate speech for that text using Fish Audio TTS.
[Uses fish_audio_tts tool with text parameter]
Result: Audio file saved to ./audio_output/tts_2025-01-03T10-30-00.mp3
User: "Generate speech with voice model xyz123 saying 'This is a custom voice test'"
Claude: I'll generate speech using the specified voice model.
[Uses fish_audio_tts tool with text and reference_id parameters]
Result: Audio generated with custom voice model xyz123
User: "Generate a long speech in streaming mode about the benefits of AI"
Claude: I'll generate the speech in streaming mode for faster response.
[Uses fish_audio_tts tool with streaming: true]
Result: Streaming audio saved to ./audio_output/tts_2025-01-03T10-35-00.mp3
User: "Stream and play in real-time: 'Welcome to the future of AI'"
Claude: I'll stream the speech via WebSocket and play it in real-time.
[Uses fish_audio_tts tool with websocket_streaming: true, realtime_play: true]
Result: Audio streamed and played in real-time via WebSocket
git clone https://github.com/da-okazaki/mcp-fish-audio-server.git
cd mcp-fish-audio-server
npm install
.env file:cp .env.example .env
# Edit .env with your API key
npm run build
npm run dev
Run the test suite:
npm test
mcp-fish-audio-server/
├── src/
│ ├── index.ts # MCP server entry point
│ ├── tools/
│ │ └── tts.ts # TTS tool implementation
│ ├── services/
│ │ └── fishAudio.ts # Fish Audio API client
│ ├── types/
│ │ └── index.ts # TypeScript definitions
│ └── utils/
│ └── config.ts # Configuration management
├── tests/ # Test files
├── audio_output/ # Default audio output directory
├── package.json
├── tsconfig.json
└── README.md
The service provides two main methods:
generateSpeech: Standard TTS generation
generateSpeechStream: Streaming TTS generation
The server handles various error scenarios:
"FISH_API_KEY environment variable is required"
FISH_API_KEY environment variable"Network error: Unable to reach Fish Audio API"
"Text length exceeds maximum limit"
Audio files not appearing
AUDIO_OUTPUT_DIR path existsContributions are welcome! Please feel free to submit a Pull Request.
git checkout -b feature/AmazingFeature)git commit -m 'Add some AmazingFeature')git push origin feature/AmazingFeature)This project is licensed under the MIT License - see the LICENSE file for details.
For issues, questions, or contributions, please visit the GitHub repository.
websocket_streaming and realtime_playauto_play parameterFAQs
MCP server for Fish Audio Text-to-Speech integration
The npm package @alanse/fish-audio-mcp-server receives a total of 16 weekly downloads. As such, @alanse/fish-audio-mcp-server popularity was classified as not popular.
We found that @alanse/fish-audio-mcp-server demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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