Arcalune Music

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.

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Free text matched against titles, descriptions, and tag names in both Japanese and English (e.g. 'lofi study', '戦闘')."
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Tag ids to filter by (OR condition). Call list_tags first to get valid ids."
    },
    "category": {
      "type": "string",
      "enum": [
        "all",
        "bgm",
        "se",
        "song",
        "arrangement"
      ],
      "description": "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": {
      "type": "boolean",
      "description": "Only return tracks whose audio file can be downloaded. Fan arrangements never qualify."
    },
    "sort": {
      "type": "string",
      "enum": [
        "default",
        "newest",
        "title",
        "plays30d",
        "playsAll",
        "favorites",
        "downloads30d",
        "downloadsAll"
      ],
      "description": "Result order. plays30d / playsAll / favorites / downloads30d / downloadsAll rank by popularity, newest by publish date, title alphabetically. Defaults to default (newest first)."
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "description": "Maximum number of tracks to return (default 10)."
    },
    "locale": {
      "type": "string",
      "enum": [
        "ja",
        "en",
        "es",
        "pt",
        "hi",
        "id",
        "fr"
      ],
      "description": "Language for titles and descriptions in the response. Defaults to ja."
    }
  },
  "additionalProperties": false
}

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.

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Track id, as returned by search_tracks."
    },
    "locale": {
      "type": "string",
      "enum": [
        "ja",
        "en",
        "es",
        "pt",
        "hi",
        "id",
        "fr"
      ],
      "description": "Language for titles and descriptions in the response. Defaults to ja."
    }
  },
  "required": [
    "id"
  ],
  "additionalProperties": false
}

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.

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}