Open-source Slack bot that chases overdue invoices: reads QuickBooks or Wave, drafts gentle-to-firm reminders, and sends via Gmail only after you approve. No database, no payment rails, no auto-send. A human-in-the-loop alternative to Bill.com-style dunning for founders, freelancers, and bookkeepers. MIT.
python gmail slack-bot mit-license quickbooks small-business bookkeeping dunning no-database human-in-the-loop wave-accounting accounts-receivable invoice-reminders freelancer-tools claude-code-plugin open-source-finance ar-automation invoice-chaser bill-com-alternative overdue-invoices
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Updated
Jul 22, 2026 - Python