Answer: It sounds as though you are looking for the creeping fig vine. It has tiny leaves and will definitely cling to stucco. There is a concern though about any vine that attaches itself to stucco - once it is there the little suction pads will remain forever on the stucco and the roots are strong enough to crack the stucco. While it may look nice from a distance, a vine like this can do damage to the stucco.
You might also consider attaching a wire "curtain" just outside the stucco surface for twining vines to climb on. This would eliminate the concern over vines damaging the stucco, and significantly open up the number of choices you have for a beautiful vine in that location.
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