A layer is one kind of measurement, collected and dated on its own. A listing’s mark price and its
order book arrive separately and age separately, so they are kept separately: dating one by the other would
overstate how fresh the older of them is.
| field |
type |
unit |
what it is |
bid |
number |
quote |
best bid price |
ask |
number |
quote |
best ask price |
mid |
number |
quote |
(bid + ask) / 2 |
spread |
number |
fraction |
(ask − bid) / mid |
bid_size |
number |
quantity |
resting quantity at the best bid |
ask_size |
number |
quantity |
resting quantity at the best ask |
| field |
type |
unit |
what it is |
funding |
number |
fraction |
published rate for the next settlement, per interval |
funding_interval |
duration |
ms |
settlement interval as published |
funding_8h |
number |
fraction |
funding × 8h / funding_interval |
time_to_funding |
duration |
ms |
next_funding_at − T |
Not published by: KRAKEN-FUTURES — asking for those gives null with reason venue_capability, never a guess.
| field |
type |
unit |
what it is |
mark |
number |
quote |
venue mark price |
index |
number |
quote |
venue index price |
basis |
number |
fraction |
(mark − index) / index |
| field |
type |
unit |
what it is |
oi |
number |
quantity |
open interest |
| field |
type |
unit |
what it is |
instrument |
code |
code |
the market code, e.g. BTC-PERP |
base |
code |
code |
the base asset’s registry code, e.g. BTC |
venues_listed |
number |
count |
number of (selected) listings at T |
venues_answered |
number |
count |
number of (selected) listings whose mark is present at T |
venue |
code |
code |
the venue’s public code |
quote |
code |
code |
the listing’s quote currency |
tick_size |
number |
quote |
minimum price increment of the listing |
lot_size |
number |
quantity |
minimum quantity increment |
min_qty |
number |
quantity |
minimum order quantity |
| field |
type |
unit |
what it is |
volume_24h |
number |
quantity |
rolling 24h traded volume as published |
turnover_24h |
number |
quote |
rolling 24h traded value as published |
change_24h |
number |
fraction |
24h price change as published |
Not published by: HYPERLIQUID — asking for those gives null with reason venue_capability, never a guess.
| field |
type |
unit |
what it is |
last |
number |
quote |
last trade price |
Generated from GET /v2/dql/catalogue at 2026-09-23T21:03:21.124Z.