You could try Amazon FPS < http://www.amazon.com/Flexible-Payments-Service-AWS/b?ie=UTF... >. I'm not sure, but I think you might even be able to use them to bill less than 1 cent.

Yup, this looks like what you want.

"Micro-Payments Support: With Amazon FPS you can track and aggregate micro-payments (e.g. payments less than $0.50 or even $0.01) into a single payment transaction"

According to the Developer's Guide, FPS supports micropayments as small as $0.00001. ("The money type handles micropayment amounts, with a precision of 1000th of a cent...")

Thanks, I totally forgotten about Amazon FPS. Looking through their API document, it's really very comprehension. Makes me wonder if someone can build a Mobile Micropayment service on top of it.

That's a good question. I looked into this recently too, but haven't decided yet whether to go with "Amazon FPS" or "Google Checkout". Search on those terms and you'll get some relevant comparison hits. I'd love to hear about other services, if any look viable. Shared experiences would also be welcome.

Hey me,

I read your profile and found out that you are working on your startup and looking for someone. Drop if me a note if you want to talk -- admin -- at -- simplebucket.com

mde, do you have contact info? E-Mail in profiles is only visible to the YC people, not other users.

Hmm, does that mean everyone who want to share their email should put it in their "about"? I just did so -- someone correct me if there's a better way to share.

mobilemoney.com has worked well for me in the past.