Separate names with a comma.
Here is a list of wrappers that you can use:
If you can't find anything you're statisfied with, you can manually send GET requests to the API. You can find all the methods here: https://github.com/HypixelDev/PublicAPI/tree/master/Documentation/methods
This is a sample request: https://api.hypixel.net/player?uuid=eec92318ffe54aeca404ba6405f33933&key=yourkey
In any way make sure your API key stays private and isn't exposed in your client side JS application.