BigBuy dropshipping program is one of the most advanced you can find online but is not totally free.
To start, you must register yourself on their portal www.bigbuy.eu
The information required are quite standard and necessary to ensure a minimum quality service.
1. Open the BigBuy website and click on "Create an account"
2. Fill up all form steps
3. Get your Key from the API portal
Take note of your API key, it will be necessary on ApiDrop to activate BigBuy as supplier.