Mirakl is a marketplace software provider that provides a marketplace platform to various marketplaces.
To get the API key login to Mirakl platform:
Click on your name in the top right hand corner then to the API key tab.
Copy the api key
The url will vary based on marketplaces.
So you'll need to take that from where you login:
e.g. for Feel Unqiue the URL is - https://feelunique-prod.mirakl.net/
Import Order Status - will typically be "SHIPPING"
Accept Orders - Some marketplaces allow you to accept orders that in stock. This option is currently just a place holder as all marketplace we have come across so far don't have this option