RecFusion Pro Multi-Sensor supports real-time capture with multiple cameras. The 3D scanning functionality can also be used inside custom applications by utilizing the RecFusion SDK.
https://www.recfusion.net/index.php/en/features
It costs 499 Euros (about $564 US dollars). It does have a free trial version though that has file export disabled.
You may be able to develop your own custom-made multi camera capture solution for less, as described in a video presentation by Intel.
https://www.youtube.com/watch?v=VSHDyUXSNqY&t=31s
