BillingEngine MCP

從任何MCP用戶端在BillingEngine中建立發票和客戶，並記錄付款。發票以草稿形式建立，且無法刪除任何內容。

文件

What you can do

The BillingEngine MCP server connects AI assistants such as Claude or Cursor to your account. You say what you need, the assistant does it with your BillingEngine data:

Create an invoice for Malermeister Müller over 100 euros.
Which invoices are overdue?
Müller paid invoice 2610030028, record the payment.

Set up

You need Node.js 20 or newer, a BillingEngine account in a paid plan and your API key from Settings > API.

Claude Desktop: add the server to claude_desktop_config.json.

{
  "mcpServers": {
    "billingengine": {
      "command": "npx",
      "args": ["-y", "billingengine-mcp"],
      "env": { "BILLINGENGINE_API_KEY": "YOUR_API_KEY" }
    }
  }
}

Claude Code:

claude mcp add billingengine \
  --env BILLINGENGINE_API_KEY=YOUR_API_KEY \
  -- npx -y billingengine-mcp

Cursor and other MCP clients: use the same command, arguments and environment variable in the settings of the client.

The source code is open (MIT license) on GitHub.

Tools

Tool	Description
`find_customers`	Searches customers by company, name or email
`create_customer`	Creates a customer
`update_customer`	Changes a customer
`create_invoice`	Creates a draft invoice for a customer
`update_invoice`	Changes a draft invoice
`list_invoices`	Lists invoices, filtered by status, customer, number or date
`get_invoice`	Returns one invoice with its items and payment status
`download_invoice`	Saves the PDF or the XML e-invoice of an invoice on your computer
`record_payment`	Records a payment for sent invoices
`list_payments`	Lists payments, optionally for one invoice

What the server does not do

It creates invoices as drafts. Nothing is sent to your customers; you review and send each invoice in BillingEngine.
It cannot delete anything.
It runs on your computer and talks to BillingEngine only with your API key. You can replace the key in your settings at any time; the settings also show when it was last used.
New invoices count towards the monthly invoice maximum of your plan, and the API allows 60 requests per minute per key.