> ## 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.

# Get HIP-4 price history JSON Schema

> Get HIP-4 price history JSON Schema contract. Includes route metadata, request parameters, response statuses, examples, and JSON fields for implementation.

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

Get mark/mid price history for a HIP-4 outcome side. Lightweight projection of open interest data. Note: `mark_price` for HIP-4 outcomes is an implied probability in \[0,1], not a USD price; same field name as perps because Hyperliquid upstream uses `markPx` for both. `oracle_price` is omitted for HIP-4 (outcomes have no oracle feed).

## Route Metadata

| Field                | Value                                  |
| -------------------- | -------------------------------------- |
| Method               | `GET`                                  |
| Path                 | `/v1/hyperliquid/hip4/prices/{symbol}` |
| operationId          | `getHip4PriceHistory`                  |
| Tag                  | HIP-4 Outcomes - Convenience           |
| Family               | HIP-4                                  |
| Deprecated or legacy | no                                     |

## Request Parameters

### Path Parameters

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "getHip4PriceHistory path parameters",
  "type": "object",
  "required": [
    "symbol"
  ],
  "properties": {
    "symbol": {
      "description": "HIP-4 coin id (e.g., `0` for outcome 0 Yes side, `1` for No side). The `#`-prefixed form (`#0`, `#1`) is also accepted.",
      "type": "string",
      "example": "0",
      "x-parameter-location": "path"
    }
  }
}
```

### Query Parameters

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "getHip4PriceHistory query parameters",
  "type": "object",
  "properties": {
    "start": {
      "description": "Start timestamp in milliseconds",
      "type": "integer",
      "format": "int64",
      "x-parameter-location": "query"
    },
    "end": {
      "description": "End timestamp in milliseconds",
      "type": "integer",
      "format": "int64",
      "x-parameter-location": "query"
    },
    "interval": {
      "description": "Aggregation interval",
      "type": "string",
      "enum": [
        "5m",
        "15m",
        "30m",
        "1h",
        "4h",
        "1d"
      ],
      "x-parameter-location": "query"
    },
    "limit": {
      "description": "Maximum number of results (default: 100, max: 1000)",
      "type": "integer",
      "default": 100,
      "maximum": 1000,
      "x-parameter-location": "query"
    },
    "cursor": {
      "description": "Cursor for pagination",
      "type": "string",
      "x-parameter-location": "query"
    }
  }
}
```

## Response Contracts

### Status 200

Price history data

#### application/json

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "getHip4PriceHistory response 200",
  "description": "API response containing an array of price snapshots",
  "type": "object",
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "description": "Price snapshot with mark, oracle, and mid prices",
        "type": "object",
        "required": [
          "timestamp"
        ],
        "properties": {
          "mark_price": {
            "description": "Mark price",
            "type": "string",
            "nullable": true,
            "example": "95000.50"
          },
          "mid_price": {
            "description": "Mid price",
            "type": "string",
            "nullable": true,
            "example": "95000.00"
          },
          "oracle_price": {
            "description": "Oracle price",
            "type": "string",
            "nullable": true,
            "example": "94998.25"
          },
          "timestamp": {
            "description": "Snapshot timestamp (UTC)",
            "type": "string",
            "format": "date-time",
            "example": "2026-02-23T12:00:00.000Z"
          }
        }
      }
    },
    "meta": {
      "type": "object",
      "properties": {
        "count": {
          "description": "Number of records returned",
          "type": "integer"
        },
        "next_cursor": {
          "description": "Cursor for pagination",
          "type": "string",
          "nullable": true
        }
      }
    },
    "success": {
      "type": "boolean",
      "example": true
    }
  }
}
```

### Status 400

Invalid request

#### application/json

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "getHip4PriceHistory response 400",
  "description": "Error response",
  "type": "object",
  "properties": {
    "code": {
      "description": "HTTP status code",
      "type": "integer"
    },
    "error": {
      "description": "Error message",
      "type": "string"
    }
  }
}
```

##### OpenAPI example

```json theme={"theme":"github-dark"}
{
  "code": 400,
  "error": "Invalid request parameters"
}
```

### Status 401

Authentication required

#### application/json

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "getHip4PriceHistory response 401",
  "description": "Error response",
  "type": "object",
  "properties": {
    "code": {
      "description": "HTTP status code",
      "type": "integer"
    },
    "error": {
      "description": "Error message",
      "type": "string"
    }
  }
}
```

##### OpenAPI example

```json theme={"theme":"github-dark"}
{
  "code": 401,
  "error": "Missing or invalid API key. Provide X-API-Key header."
}
```

### Status 429

Rate limit exceeded

#### application/json

```json theme={"theme":"github-dark"}
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "getHip4PriceHistory response 429",
  "description": "Error response",
  "type": "object",
  "properties": {
    "code": {
      "description": "HTTP status code",
      "type": "integer"
    },
    "error": {
      "description": "Error message",
      "type": "string"
    }
  }
}
```

##### OpenAPI example

```json theme={"theme":"github-dark"}
{
  "code": 429,
  "error": "Rate limit exceeded"
}
```