QuantConnect MCP Server

Instructions

Implementation Reference

• quantconnect_mcp/src/tools/optimization_tools.py:438-509 (handler)

  The main handler implementation for the 'abort_optimization' tool. This async function takes an optimization_id, authenticates with QuantConnect, and sends a POST request to the 'optimizations/abort' endpoint to abort the running optimization, returning success or error status.

  @mcp.tool()
  async def abort_optimization(
      optimization_id: str
  ) -> Dict[str, Any]:
      """
      Abort an optimization that is currently running.
  
      Args:
          optimization_id: ID of the optimization to abort
  
      Returns:
          Dictionary containing abort result
      """
      auth = get_auth_instance()
      if auth is None:
          return {
              "status": "error",
              "error": "QuantConnect authentication not configured. Use configure_auth() first.",
          }
  
      try:
          # Prepare request data
          request_data = {"optimizationId": optimization_id}
  
          # Make API request
          response = await auth.make_authenticated_request(
              endpoint="optimizations/abort", method="POST", json=request_data
          )
  
          # Parse response
          if response.status_code == 200:
              data = response.json()
  
              if data.get("success", False):
                  return {
                      "status": "success",
                      "optimization_id": optimization_id,
                      "message": f"Successfully aborted optimization {optimization_id}",
                  }
              else:
                  # API returned success=false
                  errors = data.get("errors", ["Unknown error"])
                  return {
                      "status": "error",
                      "error": "Optimization abort failed",
                      "details": errors,
                      "optimization_id": optimization_id,
                  }
  
          elif response.status_code == 401:
              return {
                  "status": "error",
                  "error": "Authentication failed. Check your credentials and ensure they haven't expired.",
              }
  
          else:
              return {
                  "status": "error",
                  "error": f"API request failed with status {response.status_code}",
                  "response_text": (
                      response.text[:500]
                      if hasattr(response, "text")
                      else "No response text"
                  ),
              }
  
      except Exception as e:
          return {
              "status": "error",
              "error": f"Failed to abort optimization: {str(e)}",
              "optimization_id": optimization_id,
          }

• quantconnect_mcp/src/server.py:79-79 (registration)

  The call to register_optimization_tools(mcp) which defines and registers the abort_optimization tool among other optimization tools.

  register_optimization_tools(mcp)

• quantconnect_mcp/main.py:52-52 (registration)

  The call to register_optimization_tools(mcp) in the main entry point, which registers the abort_optimization tool.

  register_optimization_tools(mcp)