MarketKing, like any other WordPress plugin, can work together with most other WordPress and WooCommerce plugins. There are no technical issues with having multiple plugins active and working at the same time on a site.
However, by 'compatibility', we usually mean specific integrations with such plugins. So for example, by saying MarketKing is compatible with the WooCommerce PDF Invoices plugin, we mean that there's a built-in integration which allows vendors to generate invoices from their own vendor dashboard.
This list is a work-in-progress and in no way definitive, but here are some plugins we know to be compatible at the moment: