How much dose it cost to get a key made if i lost mine

It depends on the key, do you need the actual fob? I work here I can help you. What kind of key, ( what vehicle? Year make and model?)

Call the dealership and ask. Then check Amazon. Then search. That should help. Research a company if they are unfamiliar to you. <><

Here lately ive seen people get oem keys with chips and oem styke key fobs at your local autoparts store normally under 100 also amazon has a good selection

Depends on the year, make and model. Is there a chip in it? Etc.