{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/kraken/refs/heads/main/json-schema/kraken-ticker-envelope-schema.json",
  "title": "TickerEnvelope",
  "description": "TickerEnvelope schema from Kraken Spot WebSocket API v2",
  "type": "object",
  "properties": {
    "channel": {
      "type": "string",
      "enum": [
        "ticker"
      ],
      "example": "ticker"
    },
    "type": {
      "type": "string",
      "enum": [
        "snapshot",
        "update"
      ],
      "example": "snapshot"
    },
    "data": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "symbol": {
            "type": "string",
            "example": "PI_XBTUSD"
          },
          "bid": {
            "type": "number",
            "format": "double",
            "description": "Best bid price.",
            "example": "OQCLML-BW3P3-BUCMWZ"
          },
          "bid_qty": {
            "type": "number",
            "format": "double",
            "description": "Quantity at best bid.",
            "example": 0.01
          },
          "ask": {
            "type": "number",
            "format": "double",
            "description": "Best ask price.",
            "example": 0.01
          },
          "ask_qty": {
            "type": "number",
            "format": "double",
            "description": "Quantity at best ask.",
            "example": 0.01
          },
          "last": {
            "type": "number",
            "format": "double",
            "description": "Last traded price.",
            "example": 0.01
          },
          "volume": {
            "type": "number",
            "format": "double",
            "description": "24-hour volume in the base currency.",
            "example": "0.01"
          },
          "vwap": {
            "type": "number",
            "format": "double",
            "description": "24-hour volume weighted average price.",
            "example": 0.01
          },
          "low": {
            "type": "number",
            "format": "double",
            "description": "24-hour low price.",
            "example": 0.01
          },
          "high": {
            "type": "number",
            "format": "double",
            "description": "24-hour high price.",
            "example": 0.01
          },
          "change": {
            "type": "number",
            "format": "double",
            "description": "24-hour absolute price change.",
            "example": 0.01
          },
          "change_pct": {
            "type": "number",
            "format": "double",
            "description": "24-hour percentage price change.",
            "example": 0.01
          }
        }
      },
      "example": []
    }
  },
  "required": [
    "channel",
    "type",
    "data"
  ]
}