MCP *arr Server
Enables unified control of \\*arr media management applications (Sonarr, Radarr, Lidarr, Readarr, Prowlarr) through natural language queries. Manage TV shows, movies, music, books, search for content, monitor downloads, and check upcoming releases acr
What is MCP *arr Server?
MCP *arr Server is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to enables unified control of \\*arr media management applications (sonarr, radarr, lidarr, readarr, prowlarr) through natural language queries. manage tv shows, movies, music, books, search for content,...
Enables unified control of \\*arr media management applications (Sonarr, Radarr, Lidarr, Readarr, Prowlarr) through natural language queries. Manage TV shows, movies, music, books, search for content, monitor downloads, and check upcoming releases acr
This server falls under the Business Applications category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- arr_status
- sonarr_get_quality_profiles
- sonarr_get_health
- sonarr_get_root_folders
- sonarr_get_download_clients
Use Cases
Maintainer
Works with
Installation
NPM
npx -y mcp-arr-serverManual Installation
npx -y mcp-arr-serverConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use MCP *arr Server
MCP *arr Server enables unified natural-language control of the entire *arr media management suite — Sonarr (TV), Radarr (movies), Lidarr (music), Prowlarr (indexers), and Readarr (books) — through a single Model Context Protocol server. You can search for content, trigger downloads, browse your library, monitor active download queues, check upcoming release calendars, inspect quality profiles, and diagnose health issues across all your *arr applications without switching between multiple web interfaces. It supports both local stdio and remote HTTP transports for flexible self-hosted deployments.
Prerequisites
- Node.js 18+ installed
- One or more *arr applications running and accessible (Sonarr, Radarr, Lidarr, Prowlarr, or Readarr)
- API keys for each *arr instance (found in each app under Settings > General)
- An MCP-compatible client such as Claude Desktop or Cursor
Collect API keys and URLs for each *arr app
Open each *arr application's web UI and navigate to Settings > General. Copy the API Key and note the base URL (default ports: Sonarr 8989, Radarr 7878, Lidarr 8686, Prowlarr 9696, Readarr 8787).
Add the server to your MCP client configuration
Edit your claude_desktop_config.json to register mcp-arr-server with the environment variables for each *arr app you want to connect.
{
"mcpServers": {
"mcp-arr-server": {
"command": "npx",
"args": ["-y", "mcp-arr-server"],
"env": {
"SONARR_URL": "http://localhost:8989",
"SONARR_API_KEY": "your-sonarr-api-key",
"RADARR_URL": "http://localhost:7878",
"RADARR_API_KEY": "your-radarr-api-key",
"LIDARR_URL": "http://localhost:8686",
"LIDARR_API_KEY": "your-lidarr-api-key",
"PROWLARR_URL": "http://localhost:9696",
"PROWLARR_API_KEY": "your-prowlarr-api-key"
}
}
}
}Restart your MCP client
Quit and reopen Claude Desktop or reload the server list in Cursor. The *arr tools for search, library management, queue monitoring, and health checking should now be available.
Run a health check across all services
Use the arr_status tool to verify all configured *arr apps are reachable and healthy before making changes.
Optional: run in HTTP mode for remote access
Start the server in HTTP transport mode if you want to connect from a remote MCP client rather than running it locally.
MCP_TRANSPORT=http HOST=0.0.0.0 PORT=3000 npx mcp-arr-serverMCP *arr Server Examples
Client configuration
Full claude_desktop_config.json for mcp-arr-server connecting to Sonarr, Radarr, Lidarr, and Prowlarr.
{
"mcpServers": {
"mcp-arr-server": {
"command": "npx",
"args": ["-y", "mcp-arr-server"],
"env": {
"SONARR_URL": "http://localhost:8989",
"SONARR_API_KEY": "your-sonarr-api-key",
"RADARR_URL": "http://localhost:7878",
"RADARR_API_KEY": "your-radarr-api-key",
"LIDARR_URL": "http://localhost:8686",
"LIDARR_API_KEY": "your-lidarr-api-key",
"PROWLARR_URL": "http://localhost:9696",
"PROWLARR_API_KEY": "your-prowlarr-api-key"
}
}
}
}Prompts to try
Natural-language prompts for managing media across the full *arr suite.
- "Check the health status of all my *arr applications and report any issues"
- "Search Sonarr for 'The Last of Us' and add it to my TV library with 1080p quality"
- "What movies are currently queued for download in Radarr?"
- "Show me the Lidarr discography for Pink Floyd and which albums I'm missing"
- "List all indexers in Prowlarr and show their current health status"Troubleshooting MCP *arr Server
One or more *arr apps show as unreachable
Verify the URL and API key for the failing app. Test the URL in a browser — you should reach the *arr web UI. If the apps are in Docker containers, use the container's service name or host-mapped IP rather than localhost. Check that no firewall is blocking the port.
Download search returns no results
Ensure Prowlarr (or your indexers) is configured and healthy. Run `arr_status` to check Prowlarr health, then verify your indexers are enabled and not hitting rate limits. For Sonarr/Radarr, triggering a manual search via the *arr web UI can help diagnose indexer issues independently of MCP.
npx mcp-arr-server hangs or exits immediately
Run `npx mcp-arr-server` in a terminal to see any startup error output. A common cause is a misconfigured environment variable (e.g., a URL with a trailing slash or wrong port). Also check that Node.js 18+ is installed with `node --version`.
Frequently Asked Questions about MCP *arr Server
What is MCP *arr Server?
MCP *arr Server is a Model Context Protocol (MCP) server that enables unified control of \\*arr media management applications (sonarr, radarr, lidarr, readarr, prowlarr) through natural language queries. manage tv shows, movies, music, books, search for content, monitor downloads, and check upcoming releases acr It connects AI assistants to external tools and data sources through a standardized interface.
How do I install MCP *arr Server?
Install via npm with the command: npx -y mcp-arr-server. Then add the server configuration to your AI client's JSON config file (e.g., claude_desktop_config.json or .cursor/mcp.json).
Which AI clients work with MCP *arr Server?
MCP *arr Server works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is MCP *arr Server free to use?
Yes, MCP *arr Server is open source and available under the MIT License license. You can use it freely in both personal and commercial projects.
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