If a website requires the ability to verify that a user has a valid credit card without making a purchase, than this is the tool to use. Forward visitors to Confirm18.com to verify the authenticity of a credit card, accepting the following inputs: it's first six digits, the name of the affiliated bank, and the type of card. (VISA, Mastercard, AMEX, etc.). This makes this tool ideal for situations where you need to limit access to users over 18. If a user passes this confirmation test, they will be returned to the original site. 18confirm.com is a free service that inculdes easy developer integration.
The following is a list of sample source code snippets that matched your search term. Source code snippets are chunks of source code that were found out on the Web that you can cut and paste into your own source code. Whereas most of the sample source code we've curated for our directory is for consuming APIs, we occasionally find something interesting on the API provider side of things. If you know of some sample source code that would be of interest to the ProgrammableWeb community, we'd like to know about it. Be sure to check our guidelines for making contributions to ProgrammableWeb.