Need proxy supplier fitting these requirements

Hey,

I need a proxy supplier, which would fit these requirements.

- API to create/remove proxies from another website.
- Unique anonymous private US proxies not used by anyone else.
- Control over individual proxies (not bulk purchases; not required, but preferable).

Anyone?

*bump*
The fact that I need individual control doesn't mean I won't buy a lot of proxies. Please someone help me out.