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WSS
This stream is available on the optionsRecentOrders subscription. It provides your recent order history.

Snapshot vs. Delta

The emitOptionsRecentOrders request returns a snapshot via optionsRecentOrders. Once subscribed, optionsRecentOrdersDelta messages carry new or updated history entries in the same shape.
market
type:string
required

A specific market (e.g. BTC-USDT) or ALL.

expiration
type:string
required

Contract expiration, e.g. 24JUN26. Requires market; omit to match every expiration.

strike
type:string
required

Strike price, e.g. 62000. Requires expiration; omit to match every strike.

type
type:string
required

C (call) or P (put). Requires strike; omit to match both.

Sec-WebSocket-Protocol
type:httpApiKey

Supply as authorization#<JWT> during the WebSocket handshake.

Emit Options Recent Orders
type:object
Recent Orders Snapshot
type:object

Response to emitOptionsRecentOrders.

Recent Order Delta
type:object

Pushed with new or updated history entries, in the same shape as the snapshot.