Hey there! You've joined at an interesting time if you're specifically referring to programs for Neopets. The site uses a web service that can occasionally give grief to the way some of the neopets programs interact with the site. The service is commonly referred to as StackPath, but it doesn't cause too many issues with scripts rather than programs. If you use a browser extension like tampermonkey or greasemonkey, you can easily install the scripts and have them interface with the neopets website easily. Just make sure you read a bunch first about safe ways to use all these scripts. Some automation scripts need to be stopped occasionally to emulate real human behavior.
Welcome to the forum!