Lexware Office MCP. Audit invoices, contacts, and vouchers with chat.

Lexware Office gives you full control over cloud-based accounting in Germany. Your AI agent uses this server to manage contacts, audit vouchers, track invoices, and process sales documentation like quotes and delivery notes—all through simple conversation.

Contact Management
When you need to work with a business partner, your agent handles the heavy lifting. It can create new customer or vendor records using create_contact, making sure everything is formatted right and assigned the proper role. If you just need to see who's in the book, it'll list all existing contacts for you via list_contacts.

When you know exactly who you're dealing with, running get_contact pulls up every single detail about a specified customer or supplier.

Invoice and Credit Note Auditing
Checking on money owed is what this thing does best. If you need details on an invoice, get_invoice gives you the full picture: line items, how the VAT broke down, and whether it's paid, open, or overdue. For a deeper audit, running get_credit_note pulls up the precise amount and position of any specific credit note.

If you need a historical view of credits, list_credit_notes displays every recorded credit note, sorted so you see the newest stuff first. You can also list all billed invoices using list_invoices, which shows everything chronologically with standard pagination for easy review.

The Full Accounting Picture (Vouchers)
Your agent doesn't just look at bills; it looks at the whole ledger. To get a unified view of every piece of paper logged, use list_vouchers. This tool provides a comprehensive overview of all logged documents, covering expenses and revenues alike. You can also see what accounting categories you're using for revenue and expenses by checking list_posting_categories, or check the core data for globally defined payment terms—things like discount periods or due dates—by calling list_payment_conditions.

Managing the Sales Flow
From initial idea to final shipment, your agent tracks it all. You can list both open and completed sales quotes in one go using list_quotations. If you need to review a specific quote's details—including amounts and positions—you run get_quotation. When an order is confirmed, list_order_confirmations pulls up a structured register of every past confirmation.

After the sale is locked down, running list_delivery_notes retrieves all issued delivery notes, which are your shipping documents. You can also get a list of all available quotes using list_quotations, and finally, you'll see all recorded documents including expenses and revenues through list_vouchers.