Integration with CargoX is certainly possible. See here for more info.
Additionally, we also have an integration partner (if this makes integration easier for you); more information can be found here.
The procedure requires you to sign an NDA and an MPA. After that access credentials will be created for you and handed over, along with a sandbox environment for testing. When your integration is complete, we will provide you with production environment credentials.
You will also be invited to our joint chat channel, where you will have access to our developers to accelerate your development and help you resolve any issues you might have with integration.