trade

publicchannel: tradewss://api.staging.sphx.io/v1/ws

The anonymized public trade tape — one event per resting-order leg consumed, no account identifiers. Liquidation fills do NOT appear here (they ride the private fill channel of the affected account only). Backfill via GET /v1/instruments/{id}/trades.

Subscribe params: instrument_id (required).

Subscribe

{ "op": "subscribe", "channel": "trade", "params": { "instrument_id": 1000  }

Param	Type	Required	Notes
instrument_id	integer · int64	✓	The instrument to stream

Events

trade

One frame per resting-order leg the aggressor consumed.

Field	Type	Required	Description
event_seq	integer · int64	✓	Cluster sequence number — monotonic; drives gap detection and REST/WS joins.
ts_ns	integer · int64	✓	Aeron Cluster timestamp — MILLISECONDS despite the name (historical artifact).
instrument_id	integer · int64	✓
price_pips	integer	✓
count	integer	✓
taker_side	buy · sell	✓	The aggressor's action, YES-collapsed convention.

Example frame

{
  "channel": "trade",
  "event": "trade",
  "data": {
    "event_seq": 1057,
    "ts_ns": 1779111582959,
    "instrument_id": 1000,
    "price_pips": 3900,
    "count": 100,
    "taker_side": "buy"
  }
}