QuantConnect MCP Server

Instructions

Implementation Reference

• quantconnect_mcp/src/tools/file_tools.py:11-86 (handler)

  The core handler function for the 'create_file' tool. It authenticates with QuantConnect, sends a POST request to the 'files/create' endpoint with project_id, name, and content, and returns a status dictionary based on the response.

  @mcp.tool()
  async def create_file(project_id: int, name: str, content: str) -> Dict[str, Any]:
      """
      Create a new file in a QuantConnect project.
  
      Args:
          project_id: ID of the project to add the file to
          name: Name of the file (e.g., "main.py", "algorithm.cs")
          content: Content of the file
  
      Returns:
          Dictionary containing file creation 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 = {"projectId": project_id, "name": name, "content": content}
  
          # Make API request
          response = await auth.make_authenticated_request(
              endpoint="files/create", method="POST", json=request_data
          )
  
          # Parse response
          if response.status_code == 200:
              data = response.json()
  
              if data.get("success", False):
                  return {
                      "status": "success",
                      "project_id": project_id,
                      "file_name": name,
                      "content_length": len(content),
                      "message": f"Successfully created file '{name}' in project {project_id}",
                  }
              else:
                  # API returned success=false
                  errors = data.get("errors", ["Unknown error"])
                  return {
                      "status": "error",
                      "error": "File creation failed",
                      "details": errors,
                      "project_id": project_id,
                      "file_name": name,
                  }
  
          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 create file: {str(e)}",
              "project_id": project_id,
              "file_name": name,
          }

• quantconnect_mcp/main.py:49-49 (registration)

  Top-level registration call in the main entry point that invokes register_file_tools to add the create_file tool (among others) to the MCP server.

  register_file_tools(mcp)

• quantconnect_mcp/src/server.py:76-76 (registration)

  Registration call in the server module's main function, which registers the file tools including create_file.

  register_file_tools(mcp)