I am working on entire new hobby project written on minimal apis and I checked today before writing answer to your comment: I did not used any attributes there, beside one 'FromBody' and that one only because otherwise it tries to map model from everywhere so you could in theory pass it from Query string. Which was extremely weird.

Where did you saw all of those attributes in minimal APIs? I honestly curious because from my experience - it is very forgiving and works mostly without them.