Where can I set a knowledge base to be used in a workflow?

Upload your files via the Dashboard Build → Files, then attach them to your assistant under the Files section alternatively, use the API to upload files, create a query tool, and link it to your assistant via the toolIds in the assistant config..

Hey, as of now, we don't have support for attaching a knowledge base with the workflow, but it's in our pipeline and will be added very soon.