Key UMD off Int instead of Cha?

[Yogibear41]

Is there a feat or something other than a class ability that will let me key UMD off of Int instead of Cha?

[A.J.Gibson]

Is there a feat or something other than a class ability that will let me key UMD off of Int instead of Cha?

If you're playing Pathfinder:

https://www.d20pfsrd.com/traits/magic-traits/pragmatic-activator/

[AnonymousPepper]

Came in to mention Pragmatic Activator. If you're playing 3e, I as a GM would be perfectly fine with porting it to 3.5, either as a trait - remember, 3e does have those, but you'd want to add a downside of some sort to make it fit in probably - or as a feat. Talk to your GM about it, it's a perfectly flavorful and valid thing to have.

[daremetoidareyo]

A wand of eagle's splendor and skill focus (UMD) should cover your needs.