All solutions that integrate with banking sites I’ve ever encountered were nothing more but ugly hacks, IMHO. I’m curious about FileThis, as I’d never heard if it before, and would also love a similar system.
Maybe a self-hosted document management system that can parse key info from credit card statement PDFs, such as the balance and due date? I somehow doubt that automated retrieval of statements is something that any commercial company, or open source project, can implement reliably. To this end, I’m not sure what’s worse; the financial industry, or the medical records industry. Both are stuck in the past and highly conservative.