User fills

Endpoint: wss://api.arcus.xyz/v1/ws — one socket multiplexes every channel and RPC request. Click Connect, then send the example subscribe message below to start receiving data.

Per-user fill stream. Snapshot on subscribe contains recent fills; streaming updates deliver each new fill as orders are matched. Snapshot is sent once on connect only.

LIQUIDATION and ADL fills also appear here carrying the liquidation marker (method + liquidatedUser) — on the liquidated account’s leg for LIQUIDATION and the deleveraged counterparty’s leg for ADL — so subscribers tracking realized closures can observe forced fills on either account or userFills. The marker is persisted, so it is present in snapshots as well as live updates.