We have been working on the idea of an API for true main A&A control systems (known as "clueless"). The problem is that it is potentially quite a complex project and so we struggle to start it.
However, following on from my comment on banks, it is a fair comment to ask what A&A can do.
So, one simple idea is we do the same - a simple email every day or week or whatever with an XML of various data. This could include the usage stats, and perhaps the data we get on talk talk lines for attenuation and margins. As XML it is relatively easy to add more data later.
So, we'll look in to doing that. It would be interesting to hear from customers what data they would like.
This will save some people screen scraping clueless's web interface, and means we can send the data as a background batch job and reduce load.
Obviously encryption may be sensible too. We need to sort a way to log customer PGP keys sensibly, and allow them to be updated, etc.