The Dunning Letters MCP server,
connected in one click.

invoice_register — Start chasing an unpaid invoice: register the client, the invoice reference, the amount in integer cents, the currency and the due date, and

payment_record — Record money received against a chased invoice, in whole MINOR units: a part payment lowers what is still chased, a payment that covers the

letter_render — Chase an unpaid invoice: generate the letter for the current stage of the ladder -- reminder 1 (polite), reminder 2 (firm, with the late fee

letter_sent — Record that a chase letter was actually sent, with its date, so the ladder advances to the next stage. Letters go out in order: reminder 2 c

overdue_list — Every unpaid invoice past its due date: how many days late, what is still owed, which letters have gone out, and what is due next and when.

aging_summary — The aging summary across every unpaid invoice: current, 1-30, 31-60, 61-90 and 91+ day buckets, with counts and totals in integer cents, per

chase_today — The day's chase list: which invoices cross an escalation threshold today, which letter to send each and how long it has been waiting, what f

invoice_status — One chased invoice in full: what was billed, what has been paid and what is still owed, every letter sent with its date, the escalation sche