recommendations for new (micro)payment system?

[lucy]

Since Tipjoy is shutting down, does anyone recommend other payment
systems? At ProcrasDonate we're currently looking at Amazone Flexible
Payment System. It is quite feature rich, but sadly lacks the "bank"
aspect of Tipjoy. That means we'll have to aggregate payments a bit
more.

The biggest bummer, though, is losing such a convenient JSON/REST api.
AFPS is super complicated. I guess those features still cost
something. I just finished reading the overview to the overview.

We'll probably stick with AFPS, but I thought I'd check in here to see
if anyone had other recommendations.

Thanks,
Lucy.