Yarr MCP (jmagar)

Rust MCP and CLI server for Sonarr, Radarr, Prowlarr, Plex, Jellyfin, and download clients.

People connecting automation tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Rust.

VERIFIED ACTIVE

LAST COMMIT 2026-08-14 · ★ 7 · VERIFIED 2026-08-25

AGPL-3.0 · Rust servers · how we verify → /methodology

01 · Install Yarr MCP (jmagar)

before you install - you'll need

Set YARR_SERVICES, YARR_SONARR_URL, YARR_SONARR_API_KEY, RUST_LOG, YARR_VERSION, YARR_MCP_TOKEN, YARR_MCP_HOST, YARR_MCP_PORT, YARR_RADARR_URL, YARR_RADARR_API_KEY, YARR_QBITTORRENT_URL, YARR_QBITTORRENT_USERNAME before connecting.

Claude Code

claude mcp add jmagar-yarr -- npx -y yarr-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "jmagar-yarr": {
      "command": "npx",
      "args": [
        "-y",
        "yarr-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license AGPL-3.0 - declared in the repository

npm package yarr-mcp - unscoped; check the name against the project README before installing

registry vendor namespace ai.dinglebear - domain-verified with the official MCP registry

03 · What Yarr MCP (jmagar) can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v2.2.2 · 2026-08-02

2.2.2 (2026-07-29) · Fixed · restore lifecycle hooks, wire tracearr credential, fix monitor commands

v2.1.0 · 2026-07-27

2.1.0 (2026-07-20) · Added · add shart stack lifecycle commands

v1.1.0 · 2026-07-09

1.1.0 (2026-07-09) · Added · default yarr plugin's MCP connection to stdio · wire up Gemini CLI's yarr MCP connection over stdio · Fixed · repo-wide skill review fixes, README refresh, GitHub repo rename · unblock…

04 · Who maintains Yarr MCP (jmagar)

Yarr MCP is maintained by jmagar. We track 13 MCP servers from jmagar - 10 actively maintained, 156 combined GitHub stars, oldest repo from Jun 2025. Full record: all servers from jmagar.

  1. Unraid MCP MCP server for Unraid API - provides tools to interact with an Unraid server's GraphQL API. ★ 128
  2. Arcane RMCP Rust MCP server and CLI for Arcane Docker and container management. ★ 2
  3. YTDL RMCP Rust MCP server and CLI for yt-dlp search, downloads, metadata, transfers, and Plex playlists. ★ 2
  4. Tailscale RMCP Rust MCP server and CLI for Tailscale devices, users, keys, policies, and auth. ★ 5
  5. UniFi RMCP Rust MCP server and CLI for UniFi Network controller operations. ★ 2
  6. Gotify RMCP Rust MCP server and CLI for Gotify push notifications and message management. ★ 2

05 · Facts

repository
github.com/jmagar/yarr
website
https://github.com/jmagar/yarr
category
automation - actively maintained as of 2026-08-25.
release cadence
6 releases in the last 90 days (latest 2026-08-02)
registry
ai.dinglebear/yarr-mcp (active, first published 2026-07-12)
packages
npm:yarr-mcp

06 · Yarr MCP (jmagar) FAQ

What is Yarr MCP (jmagar)?

Rust MCP and CLI server for Sonarr, Radarr, Prowlarr, Plex, Jellyfin, and download clients.

Is Yarr MCP (jmagar) still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-14 and it shipped 6 releases in the last 90 days. We re-verify nightly.

How do I install Yarr MCP (jmagar)?

Run `npx -y yarr-mcp`. The README documents 12 environment variables (YARR_SERVICES, YARR_SONARR_URL, YARR_SONARR_API_KEY…) to set first. Set YARR_SERVICES, YARR_SONARR_URL, YARR_SONARR_API_KEY, RUST_LOG, YARR_VERSION, YARR_MCP_TOKEN, YARR_MCP_HOST, YARR_MCP_PORT, YARR_RADARR_URL, YARR_RADARR_API_KEY, YARR_QBITTORRENT_URL, YARR_QBITTORRENT_USERNAME before connecting. You can also paste the ready-made client config above.

Does Yarr MCP (jmagar) run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Yarr MCP (jmagar)

Alternatives to Yarr MCP (jmagar)

Maintained automation servers if Yarr MCP (jmagar) isn't the fit.

  1. Claude Flow AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev. ★ 69,309 · 2026-08-24
  2. GitHub Connect AI assistants to GitHub - manage repos, issues, PRs, and workflows through natural language. ★ 32,478 · 2026-08-25
  3. Windows MCP An MCP Server for computer-use in Windows OS ★ 6,808 · 2026-08-22
  4. Ha MCP Comprehensive Model Context Protocol server for managing Home Assistant through AI assistants. ★ 4,503 · 2026-08-24
  5. Stripe Agent Toolkit MCP server integrating with Stripe - tools for customers, products, payments, and more. ★ 1,760 · 2026-08-22
  6. Tooluniverse 2,500+ scientific tools for AI scientists: life science, research, literature, and more. ★ 1,655 · 2026-08-20

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