What are AP and which use do they have?

[atomicstorm]

AP (Active Points) are gained 1 per minute or up to 50 per game (random). You can use active points in the Golden Saucer games like Treasure Hunter, Slots, Pandora's Mystery, or Chinchirorin.

Each game has its own set number of AP needed to play the game except for Chinchirorin which is a user-decided wager.

Active Points may be converted to GP at the rate of 250AP to 1GP.

[Tatsuken]

How DO You COnvert The AP To GP?

[Espershiva]

normally in the portal, however i didn't noticed it there cus i was seeking it as well

[Kratos]

I do believe there is a link in the client. Though I am not 100% sure, and TTE is down right now for an update. I'll edit when it's back up.