Share your insights or perspective on the financial matter presented in the input.

Which US services allow small/micro-payments using a credit card? 
I don't know of any and it is unlikely that you will be able to find one.  Most credit card processors charge a flat fee plus percentage.  The flat fee is typically in the 35 cent range making the cost of doing business, in the manner you are suggesting, astronomical.   Also what you are suggesting is contrary to best practices as hosting services, and many other industries, offer deep discounts when making a single payment for an extended period of time. This is not very helpful, but I think it is unrealistic to find what you are suggesting.