Nothing being offered. Just to use Shodan's API and then to get mass IP, you'll need to subscribe ($19/month for one million of IP per month). If you don't want to pay, you can get IP manually by using this Chrome's script (you'll need tampermonkey installed first to run this script) : http://pastebin.com/8cYX4wwV
1) You create a (free) Shodan account. You search this query :
netwave ip camera country:blabla city:blabla before:dd/mm/yyyy after:dd/mm/yyyy
Everything after "camera" is optional (netwave ip camera alone will give you all the IPCam ever for that query).
* country's blabla is the ISO code of the targeted country (for example : US for the USA, FR for France, DZ for Algeria etc., google 2-letters ISO code to find them all).
* city's blabla is the city targeted (optional)
* before: after: will give you all the IPCam strictly between those dates
2) You copy/paste all the IP into a file. Then import it in FileDownloader. It will test some default credentials (like admin:, admin:1234 etc. You can update the list in the settings) and try to bruteforce unpatched ones.
Keep in mind bruteforce will depend on the location of the IPCam compared to yours. More far is the IPCam, less chance you'll have to get non default credentials. So, better chose your own country.
If you want to extend, then rent Amazon EC2 server and run Filedownloader from there (you can rent server from many locations around the world).