I am sure someone will chime in very soon and identify your toad for you but in the meantime I can offer some basics.
Make sure he has a large dish of clean dechlorinated water that he can easily climb in and out of.
Provide some crickets that are no larger then the space between his eyes.
Provide something for him to hide under. Some sort of cave...
If the substrate in the tank smells, or is covered in feces you may want to remove it. Paper towels or fresh coco husk can be used to replace it.
Best of luck!