mcp-claude-spotify

MCP Claude Spotify

An integration that allows Claude Desktop to interact with Spotify using the Model Context Protocol (MCP).

Demo

Features

• Spotify authentication
• Search for tracks, albums, artists, and playlists
• Playback control (play, pause, next, previous)
• Create and manage playlists
• Get personalized recommendations

Requirements

• Node.js 16 or higher
• Spotify account
• Claude Desktop
• Spotify API credentials (Client ID and Client Secret)

Installation

1. Clone or download this repository:

git clone https://github.com/imprvhub/mcp-claude-spotify
cd claude-spotify-mcp

2. Install dependencies:

npm install

3. Build the project (if you want to modify the source code):

npm run build

The repository already includes pre-built files in the build directory, so you can skip step 3 if you don't plan to modify the source code.

Setting up Spotify Credentials

To use this MCP, you need to obtain Spotify API credentials:

1. Go to Spotify Developer Dashboard
2. Log in with your Spotify account
3. Click "Create App"
4. Fill in your app information:
   • App name: "MCP Claude Spotify" (or whatever you prefer)
   • App description: "Spotify integration for Claude Desktop"
   • Website: You can leave this blank or put any URL
   • Redirect URI: Important - Add http://127.0.0.1:8888/callback
5. Accept the terms and conditions and click "Create"
6. In your app dashboard, you'll see the "Client ID"
7. Click "Show Client Secret" to reveal your "Client Secret"

Save these credentials as you'll need them for configuration.

Running the MCP Server

There are two ways to run the MCP server:

Option 1: Running manually (recommended for first-time setup and troubleshooting)

1. Open a terminal or command prompt
2. Navigate to the project directory
3. Run the server directly:

node build/index.js

Keep this terminal window open while using Claude Desktop. The server will run until you close the terminal.

Option 2: Auto-starting with Claude Desktop (recommended for regular use)

The Claude Desktop can automatically start the MCP server when needed. To set this up:

Configuration

The Claude Desktop configuration file is located at:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

Edit this file to add the Spotify MCP configuration. If the file doesn't exist, create it:

{
  "mcpServers": {
    "spotify": {
      "command": "node",
      "args": ["ABSOLUTE_PATH_TO_DIRECTORY/mcp-claude-spotify/build/index.js"],
      "env": {
        "SPOTIFY_CLIENT_ID": "your_client_id_here",
        "SPOTIFY_CLIENT_SECRET": "your_client_secret_here"
      }
    }
  }
}

Important: Replace:

• ABSOLUTE_PATH_TO_DIRECTORY with the complete absolute path where you installed the MCP
  • macOS/Linux example: /Users/username/mcp-claude-spotify
  • Windows example: C:\\Users\\username\\mcp-claude-spotify
• your_client_id_here with the Client ID you obtained from Spotify
• your_client_secret_here with the Client Secret you obtained from Spotify

If you already have other MCPs configured, simply add the "spotify" section inside the "mcpServers" object.

Setting up auto-start scripts (Optional)

For a more reliable experience, you can set up auto-start scripts:

1. Create a file named start-spotify-mcp.bat in the project directory with the following content:

@echo off
cd %~dp0
node build/index.js

2. Create a shortcut to this BAT file
3. Press Win+R, type shell:startup and press Enter
4. Move the shortcut to this folder to have it start with Windows

1. Create a file named com.spotify.mcp.plist in ~/Library/LaunchAgents/ with the following content:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.spotify.mcp</string>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/local/bin/node</string>
        <string>ABSOLUTE_PATH_TO_DIRECTORY/mcp-claude-spotify/build/index.js</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <true/>
    <key>StandardErrorPath</key>
    <string>/tmp/spotify-mcp.err</string>
    <key>StandardOutPath</key>
    <string>/tmp/spotify-mcp.out</string>
    <key>EnvironmentVariables</key>
    <dict>
        <key>SPOTIFY_CLIENT_ID</key>
        <string>your_client_id_here</string>
        <key>SPOTIFY_CLIENT_SECRET</key>
        <string>your_client_secret_here</string>
    </dict>
</dict>
</plist>

2. Replace the path and credentials with your actual values
3. Load the agent with: launchctl load ~/Library/LaunchAgents/com.spotify.mcp.plist

1. Create a file named spotify-mcp.service in ~/.config/systemd/user/ (create the directory if it doesn't exist):

[Unit]
Description=Spotify MCP Server for Claude Desktop
After=network.target

[Service]
Type=simple
ExecStart=/usr/bin/node ABSOLUTE_PATH_TO_DIRECTORY/mcp-claude-spotify/build/index.js
Restart=on-failure
Environment="SPOTIFY_CLIENT_ID=your_client_id_here"
Environment="SPOTIFY_CLIENT_SECRET=your_client_secret_here"

[Install]
WantedBy=default.target

2. Replace the path and credentials with your actual values
3. Enable and start the service:

systemctl --user enable spotify-mcp.service
systemctl --user start spotify-mcp.service

4. Check status with:

systemctl --user status spotify-mcp.service

Usage

1. Restart Claude Desktop after modifying the configuration
2. In Claude, use the auth-spotify command to start the authentication process
3. A browser window will open for you to authorize the application
4. Log in with your Spotify account and authorize the application
5. Important: After successful authentication, restart Claude Desktop to properly initialize the MCP's tool registry and WebSocket session token cache
6. After restarting, all Spotify MCP tools will be properly registered and available for use

The MCP server runs as a child process managed by Claude Desktop. When Claude is running, it automatically starts and manages the Node.js server process based on the configuration in claude_desktop_config.json.

Available Tools

auth-spotify

Initiates the Spotify authentication process.

search-spotify

Searches for tracks, albums, artists, or playlists.

Parameters:

• query: Search text
• type: Type of search (track, album, artist, playlist)
• limit: Number of results (1-50)

play-track

Plays a specific track.

Parameters:

• trackId: Spotify track ID
• deviceId: (Optional) Spotify device ID to play on

get-current-playback

Gets information about the current playback.

pause-playback

Pauses the playback.

next-track

Skips to the next track.

previous-track

Returns to the previous track.

get-user-playlists

Gets the user's playlists.

create-playlist

Creates a new playlist.

Parameters:

• name: Playlist name
• description: (Optional) Description
• public: (Optional) Whether it's public or private

add-tracks-to-playlist

Adds tracks to a playlist.

Parameters:

• playlistId: Playlist ID
• trackIds: Array of track IDs

get-recommendations

Gets recommendations based on seeds.

Parameters:

• seedTracks: (Optional) Array of track IDs
• seedArtists: (Optional) Array of artist IDs
• seedGenres: (Optional) Array of genres
• limit: (Optional) Number of recommendations (1-100)

Troubleshooting

"Server disconnected" error

If you see the error "MCP Spotify: Server disconnected" in Claude Desktop:

1. Verify the server is running:

   • Open a terminal and manually run node build/index.js from the project directory
   • If the server starts successfully, use Claude while keeping this terminal open

2. Check your configuration:

   • Ensure the absolute path in claude_desktop_config.json is correct for your system
   • Double-check that you've used double backslashes (\\) for Windows paths
   • Verify you're using the complete path from the root of your filesystem

3. Try the auto-start option:

   • Set up the auto-start script for your operating system as described in the "Setting up auto-start scripts" section
   • This ensures the server is always running when you need it

Browser doesn't open automatically

If the browser doesn't open automatically during authentication, manually visit:http://127.0.0.1:8888/login

Authentication error

Make sure you've correctly configured the redirect URI in your Spotify Developer dashboard:http://127.0.0.1:8888/callback

Server startup error

Verify that:

• Environment variables are correctly configured in your claude_desktop_config.json or launch script
• Node.js is installed and compatible (v16+)
• Required ports (8888) are available and not blocked by firewall
• You have permission to run the script in the specified location

Tools not appearing in Claude

If the Spotify tools don't appear in Claude after authentication:

• Make sure you've restarted Claude Desktop after successful authentication
• Check the Claude Desktop logs for any MCP communication errors
• Ensure the MCP server process is running (run it manually to confirm)
• Verify that the MCP server is correctly registered in the Claude Desktop MCP registry

Checking if the server is running

To check if the server is running:

• Windows: Open Task Manager, go to the "Details" tab, and look for "node.exe"
• macOS/Linux: Open Terminal and run ps aux | grep node

If you don't see the server running, start it manually or use the auto-start method.

Testing

This project includes automated tests to ensure code quality and functionality. The test suite uses Jest with TypeScript support and covers:

• Zod schema validation - verifies all input schemas correctly validate data
• Spotify API interactions - tests API request handling and error handling
• MCP server functionality - ensures proper registration and execution of tools

Running Tests

First, make sure all development dependencies are installed:

npm install

To run all tests:

npm test

To run a specific test file:

npm test -- --testMatch="**/tests/schemas.test.ts"

If you encounter issues with ESM modules, make sure you're using Node.js v16 or higher and that the NODE_OPTIONS environment variable includes the --experimental-vm-modules flag as configured in the package.json.

Test Structure

• tests/schemas.test.ts: Tests for input validation schemas
• tests/spotify-api.test.ts: Tests for Spotify API interactions
• tests/server.test.ts: Tests for MCP server functionality

Adding New Tests

When adding new functionality, please include corresponding tests:

1. For new schemas, add validation tests in schemas.test.ts
2. For Spotify API functions, add tests in spotify-api.test.ts
3. For MCP tools, add tests in server.test.ts

All tests should be written using Jest and the ESM module format with TypeScript.

Security Notes

• Never share your Client ID and Client Secret
• Access token is stored only in memory during the session
• No user data is stored on disk

Revoking Application Access

For security reasons, you may want to revoke the application's access to your Spotify account when:

• You no longer use this integration
• You suspect unauthorized access
• You're troubleshooting authentication issues

To revoke access:

1. Go to your Spotify Account page
2. Navigate to "Apps" in the menu
3. Find "MCP Claude Spotify" (or the name you chose for your app)
4. Click "REMOVE ACCESS"

This immediately invalidates all access and refresh tokens. The next time you use the auth-spotify command, you'll need to authorize the application again.

Contributing

Contributions are welcome! Here are some guidelines to follow:

Development Workflow

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Make your changes
4. Run tests to ensure they pass (npm test)
5. Commit your changes (git commit -m 'Add some amazing feature')
6. Push to the branch (git push origin feature/amazing-feature)
7. Open a Pull Request

Code Style Guidelines

This project follows these coding standards:

• Use TypeScript with strict type checking
• Follow ESM module format
• Use 2 spaces for indentation
• Use camelCase for variables and functions
• Use PascalCase for classes and interfaces
• Document functions with JSDoc comments
• Keep line length under 100 characters

Project Structure

The project follows this structure:

mcp-claude-spotify/
├── src/               # Source code
├── build/             # Compiled JavaScript
├── tests/             # Test files
├── public/            # Public assets
└── ...

Pull Request Process

1. Ensure your code follows the style guidelines
2. Update documentation if needed
3. Add tests for new functionality
4. Make sure all tests pass
5. Your PR will be reviewed by maintainers

Related Links

• Model Context Protocol
• Spotify Web API Documentation
• Claude Desktop

License

This project is licensed under the Mozilla Public License 2.0 - see the LICENSE file for details.