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GET
Max-pain strike (per-expiry)
The strike where option writers profit most at expiry. Use ?expiry=0dte for the cheapest path, ?expiry=all for a per-expiry table, or pass a specific expiry token to also receive the full pain curve.

See also

Max pain explained

Authorizations

X-API-Key
string
header
required

Your BackQuant API key (same key as v1)

Headers

X-API-Key
string | null

Query Parameters

symbol
enum<string>
default:BTCUSDT

Trading symbol: BTCUSDT, ETHUSDT, SOLUSDT, or HYPEUSDT.

Available options:
BTCUSDT,
ETHUSDT,
SOLUSDT,
HYPEUSDT
expiry
string
default:all

Which expiry to include: all for every expiry, 0dte for today's expiry only, or a specific date (YYYY-MM-DD) or Deribit token (28MAR25).

Response

Successful Response

data
MaxPainResponseData · object
required
meta
V2Meta · object
required

The meta block returned alongside every v2 response.

Every field after version/timestamp is optional because endpoints attach different combinations — e.g. /v2/status skips symbol, the chain endpoint sets extra.filter_hash, etc. Listing them here means SDKs get a typed accessor for each instead of a generic meta: dict.

success
boolean
default:true