Dunn MCP Tools
Dunn exposes 4 tools. Each one has its own page with the configuration for every client that can run this server.
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invoice_due_dateinvoice due date
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late_fee_calculatorlate fee calculator
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how_late_is_this_invoicehow late is this invoice
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payment_reminder_emailpayment reminder email
This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.