The server requirements for Commerce are the same as Craft 2.x but with the following additions
craftcms/cms: ^3.0.0
dompdf/dompdf: ~0.8.2
moneyphp/money: ^3.1.3
dannyvankooten/vat.php: ^1.1.2
- PHP 7.0+ (Craft requires 7.0+)
Required for PDF generation.
- Requires at least Craft CMS 3.0.0.