Cancel all Open Orders on a Symbol (TRADE) — Cancels all active orders on a symbol. This includes OCO orders. Weight(IP): 1 PREREQUISITE: First call exchange info or symbol listing to discover valid trading pairs, then query market data.

Margin Account Cancel all Open Orders on a Symbol (TRADE) — - Cancels all active orders on a symbol for margin account. - This includes OCO orders. Weight(IP): 1 PREREQUISITE: First call exchange info or symbol listing to discover valid trading pairs, then query market data.

Advanced: Current resting orders on Kalshi.

Query Historical Algo Orders — Get all historical SPOT TWAP orders Weight(IP): 1 Returns: { total: number, orders: { algoId: number, symbol: string, side: string, totalQty: string, executedQty: string, executedAmt: string, ... }[] }. PREREQUISITE: First call exchange info or symbol listing to discover valid trading pairs, then query market data.

Set your Merx API key for this session. Unlocks all authenticated tools (trading, balance, orders). Use this if you already have an API key.

Query Margin Account's Open Orders (USER_DATA) — - If the `symbol` is not sent, orders for all symbols will be returned in an array. - When all symbols are returned, the number of requests counted against the rate limiter is equal to the number of symbols currently trading on the exchange - If isIsolated ="TRUE", symbol must be sent. Weight(IP): 10