Yes, Musicbrainz is free to use.

How do I install Musicbrainz?

Musicbrainz is a local plugin. Install it using npm package: musicbrainz-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Musicbrainz safe to use?

Musicbrainz scored 7/10 (moderate risk) in MCP Marketplace's automated security scan. It has 1 high or critical finding to review. It's listed, but review the security report on this page before installing.

What AI apps work with Musicbrainz?

Musicbrainz uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Musicbrainz MCP Server

by Chris Hall

Developer ToolsModerate7.0Local

Free

MusicBrainz MCP — search/browse music metadata, cover art, and submit tags/ratings/collections

About

MusicBrainz MCP — search/browse music metadata, cover art, and submit tags/ratings/collections

Security Report

7.0

Moderate7.0Moderate Risk

This is a well-architected MCP server for MusicBrainz with strong security practices. Authentication is properly scoped (reads are public, writes require OAuth with proper token management and confirm-gating), credentials are stored securely in environment variables, and input validation is present. The codebase has no malicious patterns or hardcoded secrets. Minor code quality observations around error handling breadth do not materially impact security. Supply chain analysis found 2 known vulnerabilities in dependencies (0 critical, 1 high severity). Package verification found 1 issue.

7 files analyzed · 6 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

What You'll Need

Set these up before or after installing:

Optional override for the User-Agent sent to MusicBrainz.Optional

Environment variable: MUSICBRAINZ_USER_AGENT

OAuth client ID (write tools only). Register at musicbrainz.org/account/applications.Required

Environment variable: MUSICBRAINZ_OAUTH_CLIENT_ID

OAuth client secret (write tools only).Required

Environment variable: MUSICBRAINZ_OAUTH_CLIENT_SECRET

OAuth refresh token with tag/rating/collection scopes (enables the write tools).Required

Environment variable: MUSICBRAINZ_OAUTH_REFRESH_TOKEN

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-chrischall-musicbrainz-mcp": {
      "env": {
        "MUSICBRAINZ_USER_AGENT": "your-musicbrainz-user-agent-here",
        "MUSICBRAINZ_OAUTH_CLIENT_ID": "your-musicbrainz-oauth-client-id-here",
        "MUSICBRAINZ_OAUTH_CLIENT_SECRET": "your-musicbrainz-oauth-client-secret-here",
        "MUSICBRAINZ_OAUTH_REFRESH_TOKEN": "your-musicbrainz-oauth-refresh-token-here"
      },
      "args": [
        "-y",
        "musicbrainz-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

musicbrainz-mcp

An MCP server for MusicBrainz, the open music encyclopedia. It gives Claude live access to MusicBrainz metadata — artists, releases, recordings, labels, works, and more — plus Cover Art Archive images, and (optionally) lets you submit your own tags, ratings, and collection edits.

Developed and maintained by AI (Claude Code). Use at your own discretion.

Tools

Read (no credentials required):

Tool	What it does
`musicbrainz_search`	Search any entity type with a Lucene query; returns ranked matches + MBIDs
`musicbrainz_lookup`	Look up an entity by MBID, with `inc` subqueries for linked data
`musicbrainz_browse`	List all entities linked to another (e.g. every release by an artist)
`musicbrainz_cover_art`	Cover Art Archive image URLs for a release / release-group
`musicbrainz_resolve`	Turn a pasted musicbrainz.org URL into its entity
`musicbrainz_healthcheck`	Verify connectivity and whether OAuth writes are configured

Write (OAuth, confirm-gated):

Tool	What it does
`musicbrainz_submit_tags`	Apply user tags to an entity on your account
`musicbrainz_submit_rating`	Set your 0–100 rating for an entity
`musicbrainz_modify_collection`	Add/remove entities in one of your collections

Each write makes no network call without confirm: true; it returns a dry-run preview first.

Install

This is a Node MCP server (stdio). Point your MCP host at it:

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

Reads work immediately. MusicBrainz asks clients to make at most one request per second — the server throttles itself to stay within that limit, so large browses are paced automatically.

Enabling the write tools (optional)

Register an application at musicbrainz.org/account/applications (redirect URI urn:ietf:wg:oauth:2.0:oob).
Complete the OAuth flow with the tag, rating, and collection scopes to obtain a refresh token.
Provide these via your MCP host's env (or a local .env):

MUSICBRAINZ_OAUTH_CLIENT_ID=...
MUSICBRAINZ_OAUTH_CLIENT_SECRET=...
MUSICBRAINZ_OAUTH_REFRESH_TOKEN=...

Development

npm install
npm run build
npm test

See CLAUDE.md for architecture and docs/MUSICBRAINZ-API.md for the pinned API shapes.

License

MIT. Data from MusicBrainz, licensed under CC0 / CC BY-NC-SA.

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Musicbrainz MCP Server

About

Security Report

Findings (6)Action required

Permissions Required

What You'll Need

How to Install

Documentation

musicbrainz-mcp

Tools

Install

Enabling the write tools (optional)

Development

License

Reviews

No reviews yet

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