Hm. Not totally sure why someone would pay for this - there are lots of readily-available open-source tools that can do this easily. GDAL/OGR[0] and Tippecanoe [1] come to mind. Maybe I'm missing a less-technical audience?
ogr2ogr -f GeoJSONSeq /vsistdout/ dataset.shp | tippecanoe -o dataset.pmtiles
aws s3 cp dataset.pmtiles s3://bucket/output.pmtiles