WC Vendors plugin is one of the multi vendor plugin. With WC Vendors plugin working with WooCommerce, you can build your own marketplace and allow vendors to sell just like Etsy Envato, eBay, or Amazon. You can browse the features of the Pro version of the plugin, which has also free version, from the plugin page.
This plugin requires WC Vendors Free. You should run both plugins together. Do not deactivate WC Vendors Free, and always activate WC Vendors Free before activating WC Vendors Pro. You don’t need input any license key.