Techniques described herein may provide a software development kit (“SDK”) for third party content providers (e.g., content providers external to a wireless telecommunications network) to provide toll-free content to users. Specifically, the transmission of such toll-free content, via the wireless telecommunications network, may not incur data charges to the user. Content providers may register content as being toll-free, and may include a script in web pages that link to the toll-free content. User devices may execute the script in order to validate links to toll-free content. User devices may further provide notifications that indicate that particular content is toll-free content.