Orderly Predict
accountDetail additively includes binaryMakerFeeRate and binaryTakerFeeRate (in bps), with the same meaning, unit, and value as the matching fields on GET /v1/client/info.
If the account’s Predict fee rates cannot be resolved for a given push, both fields are omitted from that push rather than sent as 0; other accountDetail fields are unaffected. A missing binaryTakerFeeRate does not mean the account trades Predict for free — do not default an omitted rate to 0. See Positions and Settlement for how these rates are used.