Spotify MCP Server for Gemini

A Model Context Protocol (MCP) server that exposes Spotify functionality for seamless integration with Google Gemini models.

Features

• Play Control: Play playlists, albums, and tracks

• Search: Find music by song, artist, or album

• Playback Control: Play, pause, skip, and adjust volume

• Sleep Timer: Automatically pause playback after a specified duration

• Siri Integration: HTTP bridge for Apple Shortcuts (optional)

Prerequisites

• Node.js 18+

• npm or yarn

• Spotify Developer account

• TypeScript 5.3+

• Google Gemini API access (or compatible Gemini client)

Setup

1. Spotify Developer Setup

1. Go to Spotify Developer Dashboard

2. Create a new app

3. Note your Client ID and Client Secret

4. Add a redirect URI: http://localhost:3000/callback (or your preferred URI)

2. Project Setup

1. Clone or download this repository

2. Install dependencies:

   npm install

3. Create a .env file in the root directory:

   SPOTIFY_CLIENT_ID=your_client_id_here SPOTIFY_CLIENT_SECRET=your_client_secret_here SPOTIFY_REDIRECT_URI=http://localhost:3000/callback HTTP_BRIDGE_PORT=3001 HTTP_BRIDGE_API_KEY=your_optional_api_key_here

4. Build the project:

   npm run build

3. Authentication

1. Start the server:

   npm start

2. The server will guide you through the OAuth flow if you're not authenticated

3. Visit the provided authorization URL

4. Authorize the app and copy the callback code

5. The tokens will be saved automatically in tokens.json

Usage

MCP Server for Gemini

The MCP server runs on stdio and communicates with Gemini via the Model Context Protocol.

Quick Setup:

1. Configure your Gemini client to use the MCP server (see MCP_SETUP.md for details)

2. Point it to: node /path/to/SpotifyMCP/dist/server.js

3. Set environment variables for Spotify credentials

For detailed setup instructions, see

Run the server directly:

HTTP Bridge (for Siri/Shortcuts)

The HTTP bridge exposes REST endpoints for Apple Shortcuts:

MCP Tools

The server exposes the following MCP tools for Gemini:

• play_playlist - Play a playlist by name

• play_album - Play an album by name

• play_track - Play a track by name

• search_music - Search for music

• control_playback - Control playback (play, pause, skip, volume)

• get_current_playing - Get currently playing track

• set_sleep_timer - Set a sleep timer

• cancel_sleep_timer - Cancel active timers

• get_active_timers - List active timers

Example Gemini Interactions

Once configured, you can ask Gemini:

• "Play my workout playlist on Spotify"

• "Search for songs by The Beatles"

• "Pause Spotify"

• "Set a 30 minute sleep timer"

• "What's currently playing?"

• "Play the album 'Abbey Road' by The Beatles"

Gemini will automatically use the appropriate MCP tools to execute these commands.

API Endpoints (HTTP Bridge)

The HTTP bridge provides REST endpoints for Apple Shortcuts integration. All endpoints support optional API key authentication via:

• Header: Authorization: Bearer <api_key>

• Query parameter: ?apiKey=<api_key>

Play Endpoints

POST /play/playlist

POST /play/album

POST /play/track

Search

GET /search?q=query&limit=10

Returns search results for tracks, albums, and artists.

Playback Control

POST /control

GET /now-playing

Returns information about the currently playing track.

Timer

POST /timer/set

POST /timer/cancel

GET /timer/list

Returns all active timers.

Health

GET /health

Check server status and authentication state.

Apple Shortcuts Integration

Setting Up Shortcuts

1. Open the Shortcuts app on your iPhone/iPad

2. Create a new shortcut

3. Add a "Get Contents of URL" action

4. Configure:

   • Method: POST (or GET for search/now-playing)

   • URL: http://your-server-ip:3001/play/playlist

   • Headers:

     • Content-Type: application/json

     • Authorization: Bearer <your_api_key> (if using API key)

   • Request Body: JSON with required parameters

5. Add a "Get Text from Input" action to parse the response

6. Add "Speak Text" action to have Siri confirm the action

Example Voice Commands

• "Hey Siri, play my workout playlist"

• "Hey Siri, pause Spotify"

• "Hey Siri, set a 30 minute sleep timer"

• "Hey Siri, what's playing on Spotify?"

• "Hey Siri, play [song name] by [artist]"

Running the Server for Shortcuts

For local network access:

1. Find your Mac's IP address: ifconfig | grep "inet "

2. Use that IP in Shortcuts: http://192.168.1.x:3001/...

3. Ensure your Mac's firewall allows connections on port 3001

For internet access, deploy the server to a cloud provider.

Development

Project Structure

Troubleshooting

Authentication Issues

• Ensure your redirect URI matches exactly in Spotify Dashboard

• Check that tokens.json is created and contains valid tokens

• Re-authenticate by deleting tokens.json and restarting

Device Not Found

• Make sure a Spotify device is active (app open and playing)

• Use the device selection in the Spotify app

• Check device availability via Spotify API

Connection Issues

• Verify the HTTP bridge port (default: 3001) is not blocked

• Check firewall settings

• Ensure the server is accessible on your network

Gemini Integration Issues

• Verify the absolute path to dist/server.js is correct

• Check environment variables are set properly

• Ensure Node.js is in PATH or use full path to node

• Review MCP_SETUP.md for detailed troubleshooting

License

MIT