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FIXSIM

Test FIX from Claude, ChatGPT, or Cursor: free sandbox FIX sessions or your own FIXSIM instances.

我該用這個嗎

品質與安全性

A
說明品質
99%
結構描述完整度
87%
命名品質
80%
汙染風險
100%
權限相符程度
100%
協定合規性
100%

發現項目（1）

  • LOWTool 'sandbox_get_orders' description lacks action verb在 sandbox_get_orders 中

根據工具定義與協定合規性的自動化分析。

上下文成本

~3,294Token（工具定義）
~918 B典型回應大小
顯著的注意力影響（128k 上下文的 2.57%）

這是每次將伺服器的工具載入模型上下文時所消耗的約略 token 數量。數量越高，可用於其他工作的注意力就越少。

安裝

一鍵安裝

將以下內容加入你的 `claude_desktop_config.json` 檔案：

{
  "mcpServers": {
    "fixsim": {
      "url": "https://mcp.fixsim.com/mcp"
    }
  }
}

遠端端點

https://mcp.fixsim.com/mcpstreamable-http

它能做什麼

工具清單

工具（21）

🟢 唯讀🟡 寫入🔴 刪除⚪ 未知
🟢fixsim_list_orders_out(instance, session, clOrdId, limit, apiKey)

Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "clOrdId": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    },
    "limit": {
      "description": "Max rows to return, newest first (default 25, max 200)",
      "type": "integer",
      "default": 25
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session"
  ]
}
🟢sandbox_get_status(sessionId)

Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown.

輸入結構描述

{
  "type": "object",
  "properties": {
    "sessionId": {
      "type": "string",
      "format": "uuid"
    }
  },
  "required": [
    "sessionId"
  ]
}
🟡fixsim_send_order(instance, session, clOrdId, symbol, side, ...)

Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsim_list_orders_out and fixsim_list_executions_in to see what came back.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "clOrdId": {
      "description": "ClOrdID (tag 11) to assign; must be unique on the session",
      "type": "string"
    },
    "symbol": {
      "description": "Symbol (tag 55)",
      "type": "string"
    },
    "side": {
      "description": "Side (tag 54): 1=Buy, 2=Sell, 5=Sell short",
      "type": "string"
    },
    "orderQty": {
      "description": "OrderQty (tag 38)",
      "type": "number"
    },
    "ordType": {
      "description": "OrdType (tag 40): 1=Market, 2=Limit",
      "type": "string"
    },
    "price": {
      "description": "Price (tag 44), required for limit orders",
      "type": [
        "number",
        "null"
      ],
      "default": null
    },
    "additionalTags": {
      "description": "Extra FIX tags, e.g. [{tag:59,value:\"0\"}]",
      "type": [
        "array",
        "null"
      ],
      "items": {
        "type": [
          "object",
          "null"
        ],
        "properties": {
          "tag": {
            "type": "integer"
          },
          "value": {
            "type": [
              "string",
              "null"
            ]
          }
        },
        "required": [
          "tag",
          "value"
        ]
      },
      "default": null
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session",
    "clOrdId",
    "symbol",
    "side",
    "orderQty",
    "ordType"
  ]
}
🟢fixsim_list_orders_in(instance, session, orderStatus, limit, apiKey)

Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order status and the raw FIX message. Optionally filter by FIX OrdStatus code (tag 39): 0 new, 1 partially filled, 2 filled, 4 canceled, 8 rejected.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "orderStatus": {
      "description": "Optional FIX OrdStatus (tag 39) filter",
      "type": [
        "string",
        "null"
      ],
      "default": null
    },
    "limit": {
      "description": "Max rows to return, newest first (default 25, max 200)",
      "type": "integer",
      "default": 25
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session"
  ]
}
🟢fixsim_list_executions_in(instance, session, execId, limit, apiKey)

Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filter by ExecID (tag 17).

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "execId": {
      "description": "Optional ExecID (tag 17) filter",
      "type": [
        "string",
        "null"
      ],
      "default": null
    },
    "limit": {
      "description": "Max rows to return, newest first (default 25, max 200)",
      "type": "integer",
      "default": 25
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session"
  ]
}
🔴fixsim_act_on_orders(instance, session, action, clOrdIds, lastPx, ...)

Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accept/reject a pending cancel/replace. FIXSIM emits the matching execution reports on the FIX session. Give one or more ClOrdIDs; for executions supply lastPx and, for a partial, lastQty.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "action": {
      "description": "One of: Ack, FullyExecute, PartialExecute, CancelRemaining, DoneForDay, AckCancelOrdReplaceReq, AcceptCancelOrdReplaceReq, RejectCancelOrdReplaceReq, Reject, Delete, Restate, Expire",
      "type": "string"
    },
    "clOrdIds": {
      "description": "ClOrdIDs (tag 11) of the inbound orders to act on",
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "lastPx": {
      "description": "Fill price (LastPx) for executions",
      "type": [
        "number",
        "null"
      ],
      "default": null
    },
    "lastQty": {
      "description": "Fill quantity (LastQty) for a partial execution",
      "type": [
        "number",
        "null"
      ],
      "default": null
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session",
    "action",
    "clOrdIds"
  ]
}
🟡sandbox_set_autofill(sessionId, enabled)

Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders are acknowledged and wait for sandbox_act_on_order.

輸入結構描述

{
  "type": "object",
  "properties": {
    "sessionId": {
      "type": "string",
      "format": "uuid"
    },
    "enabled": {
      "type": "boolean"
    }
  },
  "required": [
    "sessionId",
    "enabled"
  ]
}
🔴fixsim_cancel_order_out(instance, session, clOrdId, newClOrdId, additionalTags, ...)

Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "clOrdId": {
      "description": "ClOrdID of the order to cancel (becomes OrigClOrdID, tag 41)",
      "type": "string"
    },
    "newClOrdId": {
      "description": "New ClOrdID for the cancel request (tag 11); generated if omitted",
      "type": [
        "string",
        "null"
      ],
      "default": null
    },
    "additionalTags": {
      "type": [
        "array",
        "null"
      ],
      "items": {
        "type": [
          "object",
          "null"
        ],
        "properties": {
          "tag": {
            "type": "integer"
          },
          "value": {
            "type": [
              "string",
              "null"
            ]
          }
        },
        "required": [
          "tag",
          "value"
        ]
      },
      "default": null
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session",
    "clOrdId"
  ]
}
🟢fixsim_list_sessions(instance, apiKey)

List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "description": "Instance name from fixsim_list_instances",
      "type": "string"
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance"
  ]
}
🟢fixsim_list_executions_out(instance, session, clOrdId, limit, apiKey)

Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: ExecType, OrdStatus, LastPx/LastQty, CumQty, LeavesQty, AvgPx and the raw FIX.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "clOrdId": {
      "description": "Optional ClOrdID (tag 11) to narrow to one order",
      "type": [
        "string",
        "null"
      ],
      "default": null
    },
    "limit": {
      "description": "Max rows to return, newest first (default 25, max 200)",
      "type": "integer",
      "default": 25
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session"
  ]
}
🟢fixsim_get_session(instance, session, apiKey)

Get one FIX session's settings and live state (logged in?, sequence numbers, connection details).

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "description": "Session name from fixsim_list_sessions",
      "type": "string"
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session"
  ]
}
🔴sandbox_act_on_order(sessionId, clOrdId, action)

Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends the matching execution report back to the user's engine.

輸入結構描述

{
  "type": "object",
  "properties": {
    "sessionId": {
      "type": "string",
      "format": "uuid"
    },
    "clOrdId": {
      "description": "ClOrdID (tag 11) of the order",
      "type": "string"
    },
    "action": {
      "description": "fill, partial, reject or cancel",
      "type": "string"
    }
  },
  "required": [
    "sessionId",
    "clOrdId",
    "action"
  ]
}
🟢fixsim_get_order_in(instance, session, clOrdId, apiKey)

Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "clOrdId": {
      "description": "ClOrdID, FIX tag 11",
      "type": "string"
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session",
    "clOrdId"
  ]
}
🟢sandbox_get_orders(sessionId)

Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status.

輸入結構描述

{
  "type": "object",
  "properties": {
    "sessionId": {
      "type": "string",
      "format": "uuid"
    }
  },
  "required": [
    "sessionId"
  ]
}
🟢sandbox_get_messages(sessionId, afterSeq)

The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound (true = user's engine sent it), msgType, raw FIX, and parsed tag/value fields. Pass afterSeq (the last seq you saw) to fetch only new messages. Use this to explain what happened on the wire.

輸入結構描述

{
  "type": "object",
  "properties": {
    "sessionId": {
      "type": "string",
      "format": "uuid"
    },
    "afterSeq": {
      "description": "Return only messages with seq greater than this",
      "type": "integer",
      "default": 0
    }
  },
  "required": [
    "sessionId"
  ]
}
🟡sandbox_create_session(fixVersion)

Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderCompID the user must put in tag 49, the TargetCompID for tag 56, BeginString, and the expiry (sessions last 4 hours, cap 100 application messages per day). The user's FIX engine connects as the initiator; FIXSIM is the acceptor and acknowledges every order. Keep the returned id; every other sandbox tool needs it.

輸入結構描述

{
  "type": "object",
  "properties": {
    "fixVersion": {
      "description": "FIX.4.0, FIX.4.2, FIX.4.4 (default) or FIX.5.0SP2 (rides FIXT.1.1)",
      "type": "string",
      "default": "FIX.4.4"
    }
  }
}
🔴sandbox_end_session(sessionId)

End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP.

輸入結構描述

{
  "type": "object",
  "properties": {
    "sessionId": {
      "type": "string",
      "format": "uuid"
    }
  },
  "required": [
    "sessionId"
  ]
}
🟡fixsim_send_raw_fix(instance, session, fixMessages, apiKey)

Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (BeginString, CompIDs, MsgSeqNum, SendingTime) and the checksum. Use for message types the other tools do not cover.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "session": {
      "type": "string"
    },
    "fixMessages": {
      "description": "Raw FIX messages, e.g. 35=D|11=ORD1|55=IBM|54=1|38=100|40=2|44=150.25|59=0",
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance",
    "session",
    "fixMessages"
  ]
}
🟢fixsim_list_instances(apiKey)

List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance names other tools need.

輸入結構描述

{
  "type": "object",
  "properties": {
    "apiKey": {
      "description": "FIXSIM API key. Omit when the connector sends it as a header.",
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  }
}
🟢fixsim_list_securities(instance, apiKey)

Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these.

輸入結構描述

{
  "type": "object",
  "properties": {
    "instance": {
      "type": "string"
    },
    "apiKey": {
      "type": [
        "string",
        "null"
      ],
      "default": null
    }
  },
  "required": [
    "instance"
  ]
}
🟢sandbox_get_session(sessionId)

Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires.

輸入結構描述

{
  "type": "object",
  "properties": {
    "sessionId": {
      "description": "Session id from sandbox_create_session",
      "type": "string",
      "format": "uuid"
    }
  },
  "required": [
    "sessionId"
  ]
}

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