API: Open interest & flow
OI history
Total OI history (cursor-paginated). Time-series of total / call / put open interest.
GET
Total OI history (cursor-paginated)
Cursor-paginated time-series of total / call / put open interest for
the underlying. Use cursor pagination (
?limit + ?before=<ts>) to
walk backwards through history without missing rows or double-counting
at page boundaries.
The response carries next_cursor - pass it as ?before= on the next
call to fetch the previous page.
OI series are in coin units of the underlying (same convention as
/options/oi/by-expiry).
Useful for:
- Detecting OI build-ups before major expirations
- Backtest data feeds that need contiguous history
- Spotting unwinds (sudden OI drops) coincident with price moves
See also
OI by expiry
Venue coverage
OPEX calendar
Authorizations
Your BackQuant API key (same key as v1)
Headers
Query Parameters
Trading symbol: BTCUSDT, ETHUSDT, SOLUSDT, or HYPEUSDT.
Available options:
BTCUSDT, ETHUSDT, SOLUSDT, HYPEUSDT Maximum points returned (1-2000).
Required range:
1 <= x <= 2000ISO timestamp cursor - exclusive upper bound for paging older.
Response
Successful Response
