Software to find the key of a track?

[DJTyres]

I just want to know what the options are.
I have been using mixmeister to write it to the mp3s and adjusting the ones that come our wrong. They seem to import fine into traktor pro
but I was wondering if there is another way. I have found sometimes this works with Serato which I am now using with my twitch, so I was trying to figure out if there is a way to make sure the key information carries over.

Right now for gigs I am still using traktor pro but for the serato what should I do?

[Interracial Tea]

Mixed in key?

[DJNR]

Mixed in key?

Here's a whole article of different kinds of key detecting software. (http://www.djtechtools.com/2012/01/26/key-detection-software-showdown-2012-edition/)

[DJTyres]

Awesome :)

Thanks I'll read the review and give the software a try.
Looks exactly like what I was looking for!