This may be of interest to those of you not yet eligible for your UK state pension. It is the Beta model of the new State Pension Scheme, it gives you your expected pension amount and interestinly also provides a history of all your NI payments. It does require your Government Gateway Code, if you haven't got one you should really have one, and it will require some information from your passport and the ability to send you a access code via telephone. But it works, it gave me my prediction based on "today's" allowances, which is reduced slightly because my "Public Sector" pension scheme opted out.
https://www.gov.uk/check-state-pension