Kata Master Ki Pool?

[MageHunter]

I'm like 99% sure a Kata Master Monk uses Wisdom for their Ki pool as normal. I just want to see if it uses Charisma, because the archetype is kind've ruined for me.

[James Risner]

In the future, post links or copies of the text leading you to think it uses Charisma for Ki pool.

Considering there is no text saying as such, no it doesn't use Charisma. Charisma is only covered regarding it's panache pool.

[Imbicatus]

It uses wisdom for ki, and cha for panache. However, you can use cha to ki with a two level ninja dip.

There is also a new draconic monk archetype that uses cha for all monk class abilities instead of wisdom. It doesn't stack with kata master though.