# Invoicing System MCP Tools

Canonical URL: https://oneflash.hk/en/docs/mcp/tools/invoicing-software

This page is the Oneflash MCP detail reference for `invoicing-software`, not a software landing page. Status: Design Draft. Category: App.

Summary: Invoicing System MCP tools support quotes, orders, service records, invoice drafts, approvals, sending, payments, refunds, credit notes, payment reminders, recurring invoices, tax, accounting exports, and audit.

Agent workflow: Use for quote/order/service-record to invoice workflows, approvals, sending, payments, refunds, credit notes, reminders, recurring invoices, tax, and accounting export. Read document, payment, tax, and approval state before writes.

Endpoint rules: The endpoint section is the source of truth. Invoice sending, payments, refunds, credit notes, tax, and accounting exports are high-impact actions governed by approval, safety, and read-first rules. Do not invent endpoints.