OI by expiry
Call/put OI per expiry. Open interest aggregated by expiration with calls and puts split.
?weekly_only=true excludes monthly + quarterly anchors.
Units
total_oi × spot. When present on
/v2/options/expiry-summary,
notional_oi_usd is that product.
Filter with ?exchanges= where supported. Venue list:
Venue coverage.
See also
OPEX calendar
Expiry summary
Venue coverage
Authorizations
Your BackQuant API key (same key as v1)
Headers
Query Parameters
Trading symbol: BTCUSDT, ETHUSDT, SOLUSDT, or HYPEUSDT.
BTCUSDT, ETHUSDT, SOLUSDT, HYPEUSDT Comma-separated venue filter, e.g. deribit,bybit. Restricts the response to those venues' contribution, recomputed from the per-venue breakdown - it is a re-aggregation, not a post-hoc scaling. Unknown names are ignored; an all-invalid filter returns every venue rather than nothing. Venues: deribit, bybit, okx, binance, derive, thalex, delta_india, delta. A venue with no contracts on the surface contributes zero - use GET /v2/status to tell that apart from a venue that is switched off.
DTE lower bound
0 <= x <= 720DTE upper bound
0 <= x <= 720Exclude monthly + quarterly anchors (last-Friday-of-month).
Response
Successful Response
