I just made https://a.fawdaw.com/, it’s pretty cool. You can search up a player name from the game “minecraft” and it will give you the head of that player. This service is free of course, and have a simple, yet advanced API for users and developers that let them use it on their websites or in their applications. I use it on alot of my websites, and i think it should be stable.
Try it out here: https://a.fawdaw.com/