A list of malformed nodes and broken links in your API workflow, found before you submit it to ComfyUI.
About
A workflow that will not run can be broken in its structure or missing something on the server, and the error does not always say which. This check rules out the first: it reads your exported API workflow offline and reports malformed nodes and broken links.
It expects the API format, where node IDs map to a class type and inputs. The editable canvas file, with its nodes and links arrays, is a different thing; if that is what you have, export the workflow in API format first. It runs locally from the command line with Python 3.10 or later, on Windows, macOS and Linux.
A clean result does not prove that your server has the required models; check those on the server separately. It is the structural check in the Build a ComfyUI workflow with a coding agent guide. Model weights, GPU compute, provider accounts and hosting are not included.
Requirements
- Runs with
- Python 3.10+
- Operating systems
- windows, macos, linux
- Network
- Local use; related agent, model, and hosting services may require a separate account.