I see literally no reason you should have to pay anything for it if you want it unsecured. If it is available for free online and you have a computer skill, you can store the information on your computer for free, regardless of whether the operator of the site wants you to be able to do that. This is all trivially easy to do, you would just need to specify what specific thing you were getting info on and obviously the GM could rule that some info isn't available (even taking 20 on the knowledge check doesn't mean you know everything). So if you want to be able to look up culture and profession info for your icon (for example) you just store the data on your computer, this would take some time, but honestly there is no reason you wouldn't have that info preloaded before adventuring begins as it is information vitally important to your livelihood. Asking you to pay for it is just "I don't understand how computers work" stuff.