> ## Documentation Index
> Fetch the complete documentation index at: https://docs.0xarchive.io/llms.txt
> Use this file to discover all available pages before exploring further.

# ApiResponseOrderBookArray Schema

> ApiResponseOrderBookArray JSON Schema for 0xArchive OpenAPI responses and field contracts. Includes route metadata, schemas, examples, and implementation notes.

Source OpenAPI: 0xArchive API 1.5.0; 140 paths; 119 component schemas.

Use the JSON Schema block below for field-level types, required fields, nested objects, and enum values.

## Required Fields

No required fields are declared on this component schema.

## JSON Schema

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "ApiResponseOrderBookArray",
  "type": "object",
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "description": "L2 order book snapshot",
        "type": "object",
        "required": [
          "asks",
          "bids",
          "coin",
          "symbol",
          "timestamp"
        ],
        "properties": {
          "asks": {
            "description": "Ask price levels (best ask first)",
            "type": "array",
            "items": {
              "description": "Single price level in the order book",
              "type": "object",
              "required": [
                "n",
                "px",
                "sz"
              ],
              "properties": {
                "n": {
                  "description": "Number of orders at this level",
                  "type": "integer",
                  "example": 15
                },
                "px": {
                  "description": "Price",
                  "type": "string",
                  "example": "42150.00"
                },
                "sz": {
                  "description": "Total size at this price level",
                  "type": "string",
                  "example": "1.5"
                }
              }
            }
          },
          "bids": {
            "description": "Bid price levels (best bid first)",
            "type": "array",
            "items": {
              "description": "Single price level in the order book",
              "type": "object",
              "required": [
                "n",
                "px",
                "sz"
              ],
              "properties": {
                "n": {
                  "description": "Number of orders at this level",
                  "type": "integer",
                  "example": 15
                },
                "px": {
                  "description": "Price",
                  "type": "string",
                  "example": "42150.00"
                },
                "sz": {
                  "description": "Total size at this price level",
                  "type": "string",
                  "example": "1.5"
                }
              }
            }
          },
          "coin": {
            "description": "Trading pair symbol (deprecated, use symbol instead)",
            "type": "string",
            "deprecated": true,
            "example": "BTC"
          },
          "mid_price": {
            "description": "Mid price (best bid + best ask) / 2",
            "type": "string",
            "example": "42150.50"
          },
          "spread": {
            "description": "Spread in absolute terms (best ask - best bid)",
            "type": "string",
            "example": "1.00"
          },
          "spread_bps": {
            "description": "Spread in basis points",
            "type": "string",
            "example": "2.37"
          },
          "symbol": {
            "description": "Trading pair symbol",
            "type": "string",
            "example": "BTC"
          },
          "timestamp": {
            "description": "Snapshot timestamp (UTC)",
            "type": "string",
            "format": "date-time",
            "example": "2025-01-21T10:30:45.123Z"
          }
        }
      }
    },
    "meta": {
      "description": "Response metadata",
      "type": "object",
      "properties": {
        "count": {
          "description": "Number of records returned",
          "type": "integer"
        },
        "next_cursor": {
          "description": "Cursor for pagination (timestamp). Use this value as the `cursor` parameter to fetch the next page of results.",
          "type": "string",
          "nullable": true
        },
        "request_id": {
          "description": "Unique request ID for support",
          "type": "string",
          "format": "uuid"
        }
      }
    },
    "success": {
      "type": "boolean",
      "example": true
    }
  }
}
```

## Referenced By

* [GET /v1/hyperliquid/hip3/orderbook/{symbol}/history](/schemas/operations/get-hip3-orderbook-history)
* [GET /v1/hyperliquid/hip4/orderbook/{symbol}/history](/schemas/operations/get-hip4-orderbook-history)
* [GET /v1/hyperliquid/orderbook/{symbol}/history](/schemas/operations/get-hyperliquid-orderbook-history)
* [GET /v1/hyperliquid/spot/orderbook/{symbol}/history](/schemas/operations/get-hyperliquid-spot-orderbook-history)
* [GET /v1/lighter/orderbook/{symbol}/history](/schemas/operations/get-lighter-orderbook-history)
* [GET /v1/orderbook/{symbol}/history](/schemas/operations/get-orderbook-history)