QuantConnect MCP Server

Instructions

Implementation Reference

• quantconnect_mcp/src/tools/project_tools.py:860-932 (handler)

  Core implementation of the read_project_nodes tool handler. Makes authenticated POST request to QuantConnect API endpoint 'projects/nodes/read' to fetch available and selected project nodes.

  @mcp.tool()
  async def read_project_nodes(project_id: int) -> Dict[str, Any]:
      """
      Read the available and selected nodes of a project.
  
      Args:
          project_id: ID of the project to read nodes for
  
      Returns:
          Dictionary containing project node information
      """
      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 = {"projectId": project_id}
  
          # Make API request
          response = await auth.make_authenticated_request(
              endpoint="projects/nodes/read", method="POST", json=request_data
          )
  
          # Parse response
          if response.status_code == 200:
              data = response.json()
  
              if data.get("success", False):
                  nodes = data.get("nodes", {})
                  
                  return {
                      "status": "success",
                      "project_id": project_id,
                      "nodes": nodes,
                      "message": f"Successfully retrieved node information for project {project_id}",
                  }
              else:
                  # API returned success=false
                  errors = data.get("errors", ["Unknown error"])
                  return {
                      "status": "error",
                      "error": "Failed to read project nodes",
                      "details": errors,
                      "project_id": project_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 read project nodes: {str(e)}",
              "project_id": project_id,
          }

• quantconnect_mcp/src/server.py:75-75 (registration)

  Calls register_project_tools(mcp) which defines and registers the read_project_nodes tool among other project tools.

  register_project_tools(mcp)

• quantconnect_mcp/main.py:48-48 (registration)

  Alternative entry point calling register_project_tools(mcp) to register the tool.

  register_project_tools(mcp)