yes it is you can get one from the MOD site, well it's actually a summary of every mot the car has had, you just need certain details on the car, i think it's the chassis number, i got 6 years worth of mot history when i bought the car.
http://motinfo.direct.gov.uk/internet/jsp/ECHID-Internet-History-Request.jsp
definately useful if like me you've bought an older vehicle without much history, it showed that for the last 6 years it had only done between 3 and 4 thousand miles a year.