Kraken · Schema

BookData

BookData schema from Kraken Spot WebSocket API v2

CryptocurrencyExchangeTradingMarket DataSpot TradingFuturesDerivativesStakingEarnNFTWebSocketFIXCustodyOTCPrime BrokerageEmbedAuthenticationPublic APIs

Properties

Name	Type	Description
symbol	string
bids	array
asks	array
checksum	integer	CRC32 checksum of the top 10 bids and asks.
timestamp	string

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/kraken/refs/heads/main/json-schema/kraken-book-data-schema.json",
  "title": "BookData",
  "description": "BookData schema from Kraken Spot WebSocket API v2",
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "example": "PI_XBTUSD"
    },
    "bids": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "price": {
            "type": "number",
            "format": "double",
            "example": "0.01"
          },
          "qty": {
            "type": "number",
            "format": "double",
            "example": 0.01
          }
        }
      },
      "example": []
    },
    "asks": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "price": {
            "type": "number",
            "format": "double",
            "example": "0.01"
          },
          "qty": {
            "type": "number",
            "format": "double",
            "example": 0.01
          }
        }
      },
      "example": []
    },
    "checksum": {
      "type": "integer",
      "format": "int64",
      "description": "CRC32 checksum of the top 10 bids and asks.",
      "example": 1
    },
    "timestamp": {
      "type": "string",
      "format": "date-time",
      "example": "2026-05-30T00:00:00Z"
    }
  }
}

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