Hello,
This is not something that has been implemented in the API as of yet, but can be set manually. Email
Support@ChangeIP.com to make the change.
Here is the text from the API manual that talks about it:
BulkWhoisOptOut: When creating a product, the customer can choose to have the domain name information removed from any bulk listings of domain names and contacts. By default, the domain name information will be in the listings.
I think what this means is that the companies that spend the $10,000 to gain access to the entire listing of domains might not receive your info - which would be a good thing right? I will look more into this. If beneficial we will start setting all domains to opt out - why not right?
Thanks,
Sam