> ## 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.

# Builder Liquidations Now Stream on the Hyperliquid WebSocket API

*Published July 28, 2026*

The GoldRush Hyperliquid WebSocket API now exposes a GoldRush-exclusive [`builderLiquidations`](https://goldrush.dev/docs/api-reference/hyperliquid-websocket/builder-liquidations) channel at `wss://hypercore.goldrushdata.com/ws`. Subscribe with your builder address to receive, in real time, every liquidation fill whose closing order was routed through your builder code - the builder-attributed slice of the global `liquidationFills` feed, with no equivalent on the public Hyperliquid WebSocket.

## Why it's different from `liquidationFills`

* **Builder-scoped** - `builder` is required, and only liquidations attributable to your builder code are streamed. It is effectively the intersection of [`liquidationFills`](https://goldrush.dev/docs/api-reference/hyperliquid-websocket/liquidation-fills) and [`builderFills`](https://goldrush.dev/docs/api-reference/hyperliquid-websocket/builder-fills).
* **Attribution on every entry** - each fill carries both the `liquidation` object (`liquidatedUser`, `markPx`, `method`) and the `builder`, `builderFee`, and `deployerFee` attribution fields.
* **`aggregateByTime` defaults to `false`** - partial fills of the same liquidation in a block are streamed separately unless you opt in to merging by `(user, time, order_id)`.

## What to know

* **TWAP-preceded liquidations are omitted** - TWAP fills do not carry builder codes, so if a user's last fill before liquidation was a TWAP slice, the liquidation cannot be attributed to a builder and is not emitted. Use the global `liquidationFills` stream when you need every liquidation regardless of attribution.
* **Optional `dex` filter** - pass `"xyz"` or `"main"` to narrow to first-DEX fills.