{
  "id": "audio.waveform",
  "object": "tool",
  "name": "Waveform image",
  "summary": "PNG waveform of audio.",
  "description": "Draws a PNG waveform of an audio (or video) file at the size and colours you choose; transparent background by default.",
  "category": "audio",
  "hosted_by": "Opentools",
  "runtime": "container",
  "side_effects": false,
  "status": "live",
  "credits": 2,
  "price": "$0.0020",
  "providers": [
    {
      "id": "opentools",
      "name": "Opentools",
      "price": "$0.0020"
    }
  ],
  "mcp_name": "audio_waveform",
  "input_schema": {
    "type": "object",
    "properties": {
      "file": {
        "anyOf": [
          {
            "type": "object",
            "properties": {
              "url": {
                "type": "string",
                "format": "uri",
                "description": "Public http(s) URL of the file"
              }
            },
            "required": [
              "url"
            ]
          },
          {
            "type": "object",
            "properties": {
              "file_id": {
                "type": "string",
                "format": "uuid",
                "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$",
                "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 audio or video"
      },
      "width": {
        "default": 1200,
        "description": "Width in pixels",
        "type": "integer",
        "minimum": 100,
        "maximum": 4000
      },
      "height": {
        "default": 240,
        "description": "Height in pixels",
        "type": "integer",
        "minimum": 40,
        "maximum": 2000
      },
      "color": {
        "default": "#7C3AED",
        "description": "Wave colour",
        "type": "string",
        "pattern": "^#[0-9a-fA-F]{6}$"
      },
      "background": {
        "description": "Background colour. Transparent if omitted.",
        "type": "string",
        "pattern": "^#[0-9a-fA-F]{6}$"
      },
      "split_channels": {
        "default": false,
        "description": "Draw each channel separately",
        "type": "boolean"
      },
      "scale": {
        "default": "sqrt",
        "description": "Amplitude scale",
        "type": "string",
        "enum": [
          "lin",
          "log",
          "sqrt",
          "cbrt"
        ]
      }
    },
    "required": [
      "file"
    ]
  },
  "kind": "tool"
}