Paypal Register Application to get ID link does not work

None of the links to paypal developers work and I had to hunt through paypal to get API info. I got that far but now can't figure out how to register the application (that link being dead too.) Where do I go to get the ID? I haven't found anything on the paypal site at all about it.

They all go here: https://www.x.com/developers/paypal