It may look similar to an axolotl, but there are many animals that look nearly the same. I found this list of amphibians native to Kansas
here. I'm guessing it is either in the mole salamander family (
Ambystomatidae) or in the mudpuppy family (
Proteidae.) By counting the toes on the back foot you can quickly tell which family it is from. If it has four toes it is a mudpuppy and if it has five it is a mole salamander larva.
Mudpuppies live in the water their whole life and information on their captive care can be found
here. Mole salamanders, which in the case of Kansas would be the eastern tiger salamander, barred tiger salamander or smallmouth salamander, eventually metamorphose into a terrestrial salamander.
This care sheet should have all the information to care for any of the mole salamanders you would have found.
All salamanders require cooler temperatures to truly thrive so if you can not provide temperatures of 70F or lower year round you should certainly think twice about keeping this animal.