OKX MCP Server

Instructions

Implementation Reference

• mcp_okx/trading.py:148-157 (handler)

  The MCP tool 'cancel_order' handler. Decorated with @mcp.tool(), defines input schema via Pydantic Fields, and executes by calling the OKX TradeAPI's cancel_order method.

  @mcp.tool(
      title="Cancel an incomplete order",
      description="Cancel an incomplete order on OKX",
  )
  def cancel_order(
      instId: str = Field(description="Instrument ID, e.g. BTC-USDT"),
      ordId: str = Field("", description="Order ID. Either ordId or clOrdId is required. If both are passed, ordId will be used"),
      clOrdId: str = Field("", description="Client Order ID as assigned by the client"),
  ):
      return ACCOUNT.cancel_order(instId=instId, ordId=ordId, clOrdId=clOrdId)

• mcp_okx/__init__.py:26-26 (registration)

  Registers all trading tools, including 'cancel_order', by calling add_tools on the FastMCP instance.

  trading.add_tools(mcp)

• mcp_okx/trading.py:262-382 (schema)

  Defines the output schema for trade orders via MCP resource 'schema://trade/order', referenced by order-related tools.

  @mcp.resource(
      uri="schema://trade/order",
      description="This resource is used to describe the schema of the trade order on OKX",
  )
  def schema_trade_order():
      return """
      instType	String	Instrument type `MARGIN/SWAP/FUTURES/OPTION`
      instId	String	Instrument ID
      tgtCcy	String	Order quantity unit setting for sz
          base_ccy: Base currency ,quote_ccy: Quote currency
          Only applicable to SPOT Market Orders
          Default is quote_ccy for buy, base_ccy for sell
      ccy	String	Margin currency
          Applicable to all isolated MARGIN orders and cross MARGIN orders in Futures mode, FUTURES and SWAP contracts.
      ordId	String	Order ID
      clOrdId	String	Client Order ID as assigned by the client
      tag	String	Order tag
      px	String	Price. For options, use coin as unit (e.g. BTC, ETH)
      pxUsd	String	Options price in USDOnly applicable to options; return "" for other instrument types
      pxVol	String	Implied volatility of the options orderOnly applicable to options; return "" for other instrument types
      pxType	String	Price type of options
          px: Place an order based on price, in the unit of coin (the unit for the request parameter px is BTC or ETH)
          pxVol: Place an order based on pxVol
          pxUsd: Place an order based on pxUsd, in the unit of USD (the unit for the request parameter px is USD)
      sz	String	Quantity to buy or sell
      pnl	String	Profit and loss (excluding the fee). Applicable to orders which have a trade and aim to close position. It always is 0 in other conditions
      ordType	String	Order type
          market: Market order
          limit: Limit order
          post_only: Post-only order
          fok: Fill-or-kill order
          ioc: Immediate-or-cancel order
          optimal_limit_ioc: Market order with immediate-or-cancel order
          mmp: Market Maker Protection (only applicable to Option in Portfolio Margin mode)
          mmp_and_post_only: Market Maker Protection and Post-only order(only applicable to Option in Portfolio Margin mode)
          op_fok: Simple options (fok)
      side	String	Order side
      posSide	String	Position side
      tdMode	String	Trade mode
      accFillSz	String	Accumulated fill quantity
          The unit is base_ccy for SPOT and MARGIN, e.g. BTC-USDT, the unit is BTC; For market orders, the unit both is base_ccy when the tgtCcy is base_ccy or quote_ccy;
          The unit is contract for FUTURES/SWAP/OPTION
      fillPx	String	Last filled price. If none is filled, it will return "".
      tradeId	String	Last traded ID
      fillSz	String	Last filled quantity
          The unit is base_ccy for SPOT and MARGIN, e.g. BTC-USDT, the unit is BTC; For market orders, the unit both is base_ccy when the tgtCcy is base_ccy or quote_ccy;
          The unit is contract for FUTURES/SWAP/OPTION
      fillTime	String	Last filled time
      avgPx	String	Average filled price. If none is filled, it will return "".
      state	String	State. canceled/live/partially_filled/filled/mmp_canceled
      lever	String	Leverage, from 0.01 to 125. Only applicable to MARGIN/FUTURES/SWAP
      stpMode	String	Self trade prevention mode
      attachAlgoClOrdId	String	Client-supplied Algo ID when placing order attaching TP/SL.
      tpTriggerPx	String	Take-profit trigger price.
      tpTriggerPxType	String	Take-profit trigger price type.
          last: last price
          index: index price
          mark: mark price
      tpOrdPx	String	Take-profit order price.
      slTriggerPx	String	Stop-loss trigger price.
      slTriggerPxType	String	Stop-loss trigger price type.
          last: last price
          index: index price
          mark: mark price
      slOrdPx	String	Stop-loss order price.
      attachAlgoOrds	Array of objects	TP/SL information attached when placing order
      > attachAlgoId	String	The order ID of attached TP/SL order. It can be used to identity the TP/SL order when amending. It will not be posted to algoId when placing TP/SL order after the general order is filled completely.
      > attachAlgoClOrdId	String	Client-supplied Algo ID when placing order attaching TP/SL
          A combination of case-sensitive alphanumerics, all numbers, or all letters of up to 32 characters.
          It will be posted to algoClOrdId when placing TP/SL order once the general order is filled completely.
      > tpOrdKind	String	TP order kind. condition/limit
      > tpTriggerPx	String	Take-profit trigger price.
      > tpTriggerPxType	String	Take-profit trigger price type.
          last: last price
          index: index price
          mark: mark price
      > tpOrdPx	String	Take-profit order price.
      > slTriggerPx	String	Stop-loss trigger price.
      > slTriggerPxType	String	Stop-loss trigger price type.
          last: last price
          index: index price
          mark: mark price
      > slOrdPx	String	Stop-loss order price.
      > sz	String	Size. Only applicable to TP order of split TPs
      > amendPxOnTriggerType	String	Whether to enable Cost-price SL. Only applicable to SL order of split TPs.
          0: disable, the default value
          1: Enable
      > amendPxOnTriggerType	String	Whether to enable Cost-price SL. Only applicable to SL order of split TPs.
          0: disable, the default value
          1: Enable
      > failCode	String	The error code when failing to place TP/SL order, e.g. 51020. The default is ""
      > failReason	String	The error reason when failing to place TP/SL order. The default is ""
      linkedAlgoOrd	Object	Linked SL order detail, only applicable to the order that is placed by one-cancels-the-other (OCO) order that contains the TP limit order.
      > algoId	String	Algo ID
      feeCcy	String	Fee currency
          For maker sell orders of Spot and Margin, this represents the quote currency. For all other cases, it represents the currency in which fees are charged.
      fee	String	Fee amount
          For Spot and Margin (excluding maker sell orders): accumulated fee charged by the platform, always negative
          For maker sell orders in Spot and Margin, Expiry Futures, Perpetual Futures and Options: accumulated fee and rebate (always in quote currency for maker sell orders in Spot and Margin)
      rebateCcy	String	Rebate currency
          For maker sell orders of Spot and Margin, this represents the base currency. For all other cases, it represents the currency in which rebates are paid.
      rebate	String	Rebate amount, only applicable to Spot and Margin
          For maker sell orders: Accumulated fee and rebate amount in base currency.
          For all other cases, it represents the maker rebate amount, always positive, return "" if no rebate.
      source	String	Order source
          6: The normal order triggered by the trigger order
          7: The normal order triggered by the TP/SL order
          13: The normal order triggered by the algo order
          25: The normal order triggered by the trailing stop order
          34: The normal order triggered by the chase order
      category	String	Category. normal/twap/adl/full_liquidation/partial_liquidation/delivery/ddh(Delta dynamic hedge)/auto_conversion
      reduceOnly	String	Whether the order can only reduce the position size. Valid options: true or false.
      isTpLimit	String	Whether it is TP limit order. true or false
      cancelSource	String	Code of the cancellation source.
      cancelSourceReason	String	Reason for the cancellation.
      quickMgnType	String	Quick Margin type, Only applicable to Quick Margin Mode of isolated margin. manual/auto_borrow/auto_repay
      algoClOrdId	String	Client-supplied Algo ID. There will be a value when algo order attaching algoClOrdId is triggered, or it will be "".
      algoId	String	Algo ID. There will be a value when algo order is triggered, or it will be "".
      tradeQuoteCcy	String	The quote currency used for trading.
      """