I couldn't find this online, but was wondering how they were going about pulling people's purchases?<p>I doubt all or any banks have apis. Are they then simply scraping data by using the customers log-in info?
Probably the similar to how Mint and inDinero works; they use a third party service (such as Yodlee) which provide aggregation of financial data.<p>There was a thread about this:
<a href="http://news.ycombinator.com/item?id=1537825" rel="nofollow">http://news.ycombinator.com/item?id=1537825</a>