Kred is another service like of Klout where one can measure their influnces and reach. The service is powered by PeopleBrowsr and still available in few limitation. To Gain access to it one must have account in PeopleBrowsr so that one can tweet about them. Another way is to give email id and get the invite.
This service is those not much competitive like what to we accept from like of Klout. It only go with the Twitter account and thus only tweeter will considered for the measurement of influence.
See the Slide about the Kred :