> ## 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.

# OpenInterest Schema

> Open interest snapshot with market context. Includes generated fields, route metadata, response shapes, and implementation-safe 0xArchive contract details.

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

Open interest snapshot with market context

## Required Fields

| Field           | Type             | Description                                          |
| --------------- | ---------------- | ---------------------------------------------------- |
| `coin`          | string           | Trading pair symbol (deprecated, use symbol instead) |
| `open_interest` | string           | Total open interest in contracts                     |
| `symbol`        | string           | Trading pair symbol                                  |
| `timestamp`     | string:date-time | Snapshot timestamp (UTC)                             |

## JSON Schema

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "OpenInterest",
  "description": "Open interest snapshot with market context",
  "type": "object",
  "required": [
    "coin",
    "open_interest",
    "symbol",
    "timestamp"
  ],
  "properties": {
    "coin": {
      "description": "Trading pair symbol (deprecated, use symbol instead)",
      "type": "string",
      "deprecated": true,
      "example": "BTC"
    },
    "day_ntl_volume": {
      "description": "24-hour notional volume",
      "type": "string",
      "nullable": true,
      "example": "10000000.00"
    },
    "impact_ask_price": {
      "description": "Impact ask price for liquidations",
      "type": "string",
      "nullable": true
    },
    "impact_bid_price": {
      "description": "Impact bid price for liquidations",
      "type": "string",
      "nullable": true
    },
    "mark_price": {
      "description": "Mark price used for liquidations",
      "type": "string",
      "nullable": true,
      "example": "42500.50"
    },
    "mid_price": {
      "description": "Current mid price",
      "type": "string",
      "nullable": true,
      "example": "42500.75"
    },
    "open_interest": {
      "description": "Total open interest in contracts",
      "type": "string",
      "example": "500000.00"
    },
    "oracle_price": {
      "description": "Oracle price from external feed",
      "type": "string",
      "nullable": true,
      "example": "42498.25"
    },
    "prev_day_price": {
      "description": "Price 24 hours ago",
      "type": "string",
      "nullable": true,
      "example": "42000.00"
    },
    "symbol": {
      "description": "Trading pair symbol",
      "type": "string",
      "example": "BTC"
    },
    "timestamp": {
      "description": "Snapshot timestamp (UTC)",
      "type": "string",
      "format": "date-time",
      "example": "2025-01-21T10:30:00.000Z"
    }
  }
}
```

## Referenced By

Use this shared schema with the generated component index and route-specific endpoint pages during implementation.