Ask HN: Need for a RSS/API relay service?

On my current project, I will be pulling in many different feeds and talking to many API's. It occurred to me that it would be smart to 'launder' these requests though a relay, (AWS) so that if I accidentally do something wrong, I can just get a new IP address and keep going. I don't plan on breaking any API/RSS TOS, but it's a big risk if I do accidentally, and my main server is banned from then on.

So I'm going to build a relay that just takes my API call requests, forwards them and send me back the results. Same with XML/RSS feed requests.

Now, I'm sure I'm not the first person to do this, but it made me wonder if other developers would be interested in this type of thing as a (paid)service? I understand this might be a target for abuse, so there would need to be a lot of anti-abuse code as well (I don't intend on building something to get around terms of service, just something to reduce a developer's risk).

Thoughts?