{
  "id": "audio.separate",
  "object": "tool",
  "name": "Separate stems",
  "summary": "Split vocals, drums, bass and more.",
  "description": "Splits a song into vocals, drums, bass and other stems with Demucs on fal. Ask for guitar or piano to use the six-stem model.",
  "category": "audio",
  "hosted_by": "fal",
  "runtime": "partner",
  "side_effects": false,
  "status": "live",
  "credits": 5,
  "price": "$0.0050",
  "providers": [
    {
      "id": "fal",
      "name": "fal",
      "price": "$0.0050"
    }
  ],
  "mcp_name": "audio_separate",
  "input_schema": {
    "type": "object",
    "properties": {
      "file": {
        "anyOf": [
          {
            "type": "object",
            "properties": {
              "url": {
                "type": "string",
                "format": "uri",
                "description": "Public http(s) URL of the file"
              }
            },
            "required": [
              "url"
            ]
          },
          {
            "type": "object",
            "properties": {
              "file_id": {
                "type": "string",
                "format": "uuid",
                "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
                "description": "An id returned by POST /v1/files"
              }
            },
            "required": [
              "file_id"
            ]
          },
          {
            "type": "object",
            "properties": {
              "base64": {
                "type": "string",
                "description": "Base64-encoded file bytes (up to 10 MB)"
              },
              "name": {
                "type": "string",
                "description": "File name, e.g. invoice.pdf"
              },
              "content_type": {
                "type": "string"
              }
            },
            "required": [
              "base64",
              "name"
            ]
          },
          {
            "type": "object",
            "properties": {
              "connection": {
                "type": "string",
                "minLength": 1,
                "maxLength": 64,
                "description": "A storage connection id or name (see storage.connections)"
              },
              "path": {
                "type": "string",
                "minLength": 1,
                "maxLength": 1024,
                "description": "Path of the file in that connection, e.g. reports/q3.pdf"
              }
            },
            "required": [
              "connection",
              "path"
            ]
          }
        ],
        "x-file": true,
        "description": "The song or recording"
      },
      "stems": {
        "default": [
          "vocals",
          "drums",
          "bass",
          "other"
        ],
        "description": "Stems to return",
        "minItems": 1,
        "maxItems": 6,
        "type": "array",
        "items": {
          "type": "string",
          "enum": [
            "vocals",
            "drums",
            "bass",
            "other",
            "guitar",
            "piano"
          ]
        }
      },
      "format": {
        "default": "mp3",
        "description": "Output audio format",
        "type": "string",
        "enum": [
          "mp3",
          "wav"
        ]
      }
    },
    "required": [
      "file"
    ]
  },
  "kind": "tool"
}