Ledgerline

An invoice bills 600 kg of coffee, ten 60 kg sacks. The receiving photo shows nine. Ledgerline links the invoice, the purchase order and the photo, flags the EUR 426 difference, and drafts a supplier email for review. Ledgerline is an accounts-payable agent for small food businesses. It checks supplier bills against purchase orders, contracts, VAT rules, payment history and what actually arrived (a staff voice memo or a delivery photo). It holds or rejects what's wrong, drafts a SEPA payment file and supplier emails, and stops for a person to approve. Every model call, tool result and decision is logged and can be replayed. In a recorded run on 32 synthetic documents (a fictional coffee roaster), it stopped all 12 planted problem documents (flag recall 100%, precision 94%) and made 31/32 correct decisions. It flagged EUR 8,339 at risk in 2.7 minutes for $1.10 of model calls. The one extra flag is a real warning sign the answer key doesn't list: the fake bank-change email pushes for payment by a deadline and says the sender can't be reached by phone. That is one synthetic scenario, not measured customer results. Try it in the browser (replays of recorded runs, you are the approver): https://founder-sk-hub.github.io/ledgerline/