# Arcalune Music (remote · arcalune.com)

Search royalty-free BGM and sound effects (commercial use OK, no credit) and game fan arrangements.

- Trust score: 79/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- remote · `arcalune.com`: 79/100 (this document), [markdown](https://verifymcp.io/servers/com-arcalune-music/arcalune.md), [page](https://verifymcp.io/servers/com-arcalune-music/arcalune)

## Channel facts

- Endpoint: `https://arcalune.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-21.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 573 tokens (~191/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Arcalune Music MCP server?

Arcalune Music is a hosted endpoint at https://arcalune.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-arcalune-music 'https://arcalune.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-arcalune-music": {
      "url": "https://arcalune.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-arcalune-music": {
      "type": "http",
      "url": "https://arcalune.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-arcalune-music]
url = "https://arcalune.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-arcalune-music": {
      "type": "remote",
      "url": "https://arcalune.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-arcalune-music --url 'https://arcalune.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-arcalune-music:
    url: "https://arcalune.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-arcalune-music": {
      "Transport": "http",
      "Url": "https://arcalune.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-arcalune-music -t streamable-http -u 'https://arcalune.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-arcalune-music": {
      "type": "http",
      "url": "https://arcalune.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-21 (score 79, 0)

- [security] Stability: 0.97 → pass

### 2026-09-20 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-12 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-07 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (3)

### `search_tracks` (~300 tokens)

Search tracks

Search Arcalune Music for royalty-free BGM, sound effects, video game fan arrangements, and original vocal songs. Every track streams on YouTube, and the returned youtubeUrl jumps straight to where that track starts. When presenting results to a user, always include the youtubeUrl so they can listen to the track. Free BGM and sound effects allow commercial use without credit; fan arrangements and vocal songs are streaming-only.

Input parameters:

- `category` (string): bgm = free BGM and original music, se = sound effects, arrangement = streaming-only fan arrangements, song = streaming-only original vocal songs, all = everything. Defaults to all.
- `downloadableOnly` (boolean): Only return tracks whose audio file can be downloaded. Fan arrangements never qualify.
- `limit` (integer): Maximum number of tracks to return (default 10).
- `locale` (string): Language for titles and descriptions in the response. Defaults to ja.
- `query` (string): Free text matched against titles, descriptions, and tag names in both Japanese and English (e.g. 'lofi study', '戦闘').
- `sort` (string): Result order. plays30d / playsAll / favorites / downloads30d / downloadsAll rank by popularity, newest by publish date, title alphabetically. Defaults to default (newest first).
- `tags` (array): Tag ids to filter by (OR condition). Call list_tags first to get valid ids.

### `get_track` (~83 tokens)

Get track

Get one track by id, together with related tracks from the same catalog. Returns the YouTube URL with the track's start position, the track page, and the download URL when the audio is distributed.

Input parameters:

- `id` (string, required): Track id, as returned by search_tracks.
- `locale` (string): Language for titles and descriptions in the response. Defaults to ja.

### `list_tags` (~47 tokens)

List tags

List every tag that can be passed to search_tracks, grouped by production use, genre, mood, usage, scene, source game, and usage rights, with how many tracks carry each tag.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-arcalune-music/arcalune#diagnostics

## Score history

- 2026-09-21: 79
- 2026-09-20: 79
- 2026-09-19: 78
- 2026-09-18: 78
- 2026-09-17: 77
- 2026-09-16: 77
- 2026-09-15: 76
- 2026-09-14: 76
- 2026-09-13: 75
- 2026-09-12: 75
- 2026-09-11: 74
- 2026-09-10: 74
- 2026-09-09: 73
- 2026-09-08: 73
- 2026-09-07: 73
- 2026-09-06: 72
- 2026-09-05: 72
- 2026-09-04: 71
- 2026-09-03: 71
- 2026-09-02: 70
- 2026-09-01: 70
- 2026-08-31: 69
- 2026-08-30: 69
- 2026-08-29: 68
- 2026-08-28: 68
- 2026-08-27: 67
- 2026-08-26: 67
- 2026-08-25: 65
- 2026-08-24: 66
- 2026-08-23: 65

## Common questions

### What is the Arcalune Music MCP server?

Arcalune Music is an MCP server listed in the public MCP registry as com.arcalune/music. Search royalty-free BGM and sound effects (commercial use OK, no credit) and game fan arrangements. This page covers its hosted endpoint (https://arcalune.com/mcp).

### Is the Arcalune Music MCP server safe to use?

Arcalune Music scores 79 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Arcalune Music MCP server expose?

Arcalune Music exposes 3 tools: search_tracks, get_track, list_tags. Their descriptions and schemas cost roughly 430 tokens of context every time the server is loaded.

### Does the Arcalune Music MCP server require authentication?

No. We connected to Arcalune Music without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Arcalune Music MCP server still maintained?

Arcalune Music is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://arcalune.com/mcp
- Website: https://arcalune.com/developers
- Changelog RSS feed: https://verifymcp.io/servers/com-arcalune-music/arcalune.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-arcalune-music/arcalune.json
- HTML version of this page: https://verifymcp.io/servers/com-arcalune-music/arcalune