Can someone help please? WEB API is intimidating

Hello, i know they have some vids on youtube, but i still find web api intimidating… i really just want to know how to retrieve user data from our WordPress site, use it to allow access and other related stuff.

Just for future reference of other community members, we have a full playlist of API tutorials here:

I’ve looked at the Wordpress API before and it’s not the most usable one in the world.