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

# builderFills | Hyperliquid Info API

> Hyperliquid builderFills: fetch a builder’s most recent attributed trade fills for revenue attribution and order-flow analytics.

> [card] Credit Cost
>
> 1 per call

> [card] Processing
>
> Realtime

The Hyperliquid info endpoint with `type: "builderFills"` is used to fetch a builder’s most recent attributed trade fills for revenue attribution and order-flow analytics.

> [!TIP]
>
> Estimate your monthly cost for this API using the [Pricing Calculator](https://goldrush.dev/docs/pricing-calculator.md?endpoint=%2Fapi-reference%2Fhyperliquid-info%2Fbuilder-fills).

> [!NOTE]
>
> * GoldRush-native: No `POST api.hyperliquid.xyz/info` equivalent. Available only via `POST hypercore.goldrushdata.com/info`.
> * Each response contains at most 2,000 fills, ordered most-recent first.
> * For windowed queries for revenue reports and monthly reconciliation, use [`builderFillsByTime`](https://goldrush.dev/docs/api-reference/hyperliquid-info/builder-fills-by-time).

Returns the 2,000 most recent fills attributed to a builder address. Use this when you operate a builder code and want to inspect the order flow routed through it without specifying a time window.

Builder-keyed. GoldRush-native so there is no upstream Hyperliquid `/info` equivalent.

## Endpoint

```
POST https://hypercore.goldrushdata.com/info
Authorization: Bearer <GOLDRUSH_API_KEY>
Content-Type: application/json
```

## Request

**type** `string` *required*

Always `"builderFills"`.

**builder** `string` *required*

The builder address that orders were routed through. Must be a `0x`-prefixed 42-character hex address.

**aggregateByTime** `boolean`

When `true`, partial fills sharing the same timestamp are consolidated into one row. Default `false`.

**cursor** `string`

Pagination cursor — a Unix timestamp in milliseconds encoded as a string. When set, returns fills strictly before this time. Use the `time` value of the oldest fill in the previous page to fetch the next page.

### Example

```bash cURL theme={null}
curl -X POST https://hypercore.goldrushdata.com/info \
  -H "Authorization: Bearer $GOLDRUSH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "builderFills",
    "builder": "0x0000000000000000000000000000000000000000"
  }'
```

```typescript TypeScript theme={null}
const response = await fetch("https://hypercore.goldrushdata.com/info", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.GOLDRUSH_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    type: "builderFills",
    builder: "0x0000000000000000000000000000000000000000",
  }),
});

const fills = await response.json();
```

```python Python theme={null}
import os, requests

response = requests.post(
    "https://hypercore.goldrushdata.com/info",
    headers={"Authorization": f"Bearer {os.environ['GOLDRUSH_API_KEY']}"},
    json={
        "type": "builderFills",
        "builder": "0x0000000000000000000000000000000000000000",
    },
)

fills = response.json()
```

## Response

An array of fill objects ordered most-recent-first. Each entry is a fill from an order that was routed through the builder address.

```json theme={null}
[
  {
    "user": "0x73f9c53a8b15e43056d5599f6488ac9a8730f85d",
    "coin": "HYPE",
    "px": "66.977",
    "sz": "0.69",
    "side": "B",
    "time": 1781518798259,
    "startPosition": "0",
    "dir": "Open Long",
    "closedPnl": "0",
    "hash": "0x2b7bd2df9499dfef2cf5043dc500b402068500c52f9cfec1cf447e32539db9d9",
    "oid": 469533808540,
    "crossed": true,
    "fee": "0.048524",
    "tid": 332575399132451,
    "feeToken": "USDC",
    "builderFee": "0.027728",
    "cloid": "0xff8ffaa775354e8faf1eaa18127d6b5e"
  }
]
```

### Field descriptions

> [!NOTE]
>
> All numeric fields (`px`, `sz`, `startPosition`, `closedPnl`, `fee`, `builderFee`) are returned as **decimal strings** with full upstream precision (up to 18 decimal places). Do not parse them as floats - keep them as strings or use a fixed-precision decimal type.

**user** `string`

The trader's wallet address - the account that placed the order routed through the builder code.

**coin** `string`

Asset symbol - e.g. `"BTC"`, `"ETH"` for perps; spot pairs use the `@N` form (e.g. `"@107"`); HIP-3 markets use the deployer-prefixed form.

**px** `string`

Fill execution price.

**sz** `string`

Fill size.

**side** `string`

`"B"` for buy/long, `"A"` for ask/short.

**time** `int`

Unix timestamp in milliseconds when the fill executed.

**startPosition** `string`

Signed position size the trader held on this coin immediately before this fill.

**dir** `string`

Human-readable direction label - `"Open Long"`, `"Open Short"`, `"Close Long"`, `"Close Short"`, `"Buy"`, `"Sell"`, or position-flip labels `"Long > Short"` / `"Short > Long"`.

**closedPnl** `string`

Realized PnL in USDC attributable to this fill for the trader (zero when the fill opens or extends a position).

**hash** `string`

L1 transaction hash that included this fill.

**oid** `int`

Parent order ID.

**tid** `int`

Unique trade ID.

**crossed** `boolean`

`true` when the fill came from the taker side of the order, `false` when it was the maker side.

**fee** `string`

Trading fee paid by the trader for this fill, denominated in `feeToken`.

**feeToken** `string`

Symbol the fee was paid in - typically `"USDC"`.

**builderFee** `string`

Optional. Builder fee earned for this fill, denominated in `feeToken`. Omitted when no builder fee was charged.

**cloid** `string`

Optional. Client order ID (`0x`-prefixed 32-character hex) if one was set at order placement.

**liquidation** `object`

Optional. Present only when this fill closed a position as part of a liquidation event.

**properties**

**liquidatedUser** `string`

The wallet whose position was liquidated.

**markPx** `string`

Mark price at the time of liquidation.

**method** `string`

Liquidation method - e.g. `"Market"`.

## Related endpoints

> [card] [builderFillsByTime](https://goldrush.dev/docs/api-reference/hyperliquid-info/builder-fills-by-time.md)
>
> fetch a builder’s attributed trade fills within a time window for revenue attribution and fee accounting.

> [card] [userFills](https://goldrush.dev/docs/api-reference/hyperliquid-info/user-fills.md)
>
> fetch a user's most recent trade fills without specifying a time window.

> [card] [userFillsByTime](https://goldrush.dev/docs/api-reference/hyperliquid-info/user-fills-by-time.md)
>
> fetch a user’s trade fills within a time window for P\&L recaps and tax ledger reconstruction.

> [card] [userTwapSliceFills](https://goldrush.dev/docs/api-reference/hyperliquid-info/user-twap-slice-fills.md)
>
> fetch a user's most recent TWAP slice fills for execution-quality analytics on algorithmic orders.

> [card] [userTwapSliceFillsByTime](https://goldrush.dev/docs/api-reference/hyperliquid-info/user-twap-slice-fills-by-time.md)
>
> fetch a user's TWAP slice fills within a time window for execution-quality reconciliation on algorithmic orders.

See all Hyperliquid endpoints: [Overview hub](https://goldrush.dev/docs/goldrush-hyperliquid/overview.md) · [Info API reference](https://goldrush.dev/docs/goldrush-hyperliquid/info-api/overview.md)

*Last reviewed: 2026-07-23*


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