I did some work on a project a while ago where we needed to extract this information. Unfortunately, I could find no way to retrieve comments.
There is a way to retrieve labels, it’s just not pretty, and not automated, so would only be appropriate for a one-time upload as you migrated from Sprintr to a new system. With that in mind…
Go to your Stories overview, and go to export a sprint
Follow the given steps, and download your CSV. It;s structured per ticket ID, and each ticket has a column for Labels
They’re seperated by a semicolon, and don’t include the colour or anything like that. But from this, you can create a microflow that
Like I said, not very pretty, and not automated. But it is achievable, and I’ve got it working in the past. Hope this is of use.
The only information about the story in the API is:
So you have no label/comments.
You can create your own app and push them to sprintr with the API.