Lexware Office MCP. Control your entire accounting workflow conversationally.
Lexware Office (Accounting & Invoicing) MCP connects your AI client directly to Lexware Office, giving you conversational control over German bookkeeping. Manage everything from customer master data and invoices to complex accounting vouchers, quotations, and payment conditions—all without leaving your agent environment.
Give Claude and any AI agent real-world access
Access a unified stream of all recorded vouchers, including expenses, revenue, and credit notes, for detailed bookkeeping audits.
List, retrieve details, or create new business contacts (customers and vendors) while assigning precise roles.
Retrieve detailed information on any invoice, including VAT breakdowns, net/gross amounts, and current payment statuses.
Inspect quotations, order confirmations, and delivery notes to monitor the full sales and logistics pipeline.
Query global payment conditions or posting categories to confirm accurate tax mapping and account setup.
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What AI agents can do with Lexware Office (Accounting & Invoicing) - 14 Tools
These tools let you interact with every aspect of your Lexware accounting system. Use them to create contacts, retrieve detailed invoice data, and audit complex financial documents.
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Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Lexware Office (Accounting & Invoicing) MCPList Contacts
Lists and structures all business contacts, including both customers and suppliers.
Get Contact
Retrieves the complete contact details for a specific customer or supplier.
Create Contact
Creates a new business record, assigning it proper roles and formatting for...
List Invoices
Retrieves a list of all issued invoices, sorted chronologically.
Get Invoice
Gets detailed information and line items for one specific invoice, including tax...
List Credit Notes
Shows the history of all credit notes recorded in Lexware Office, structured by date descending.
Get Credit Note
Queries the precise amount details and positions for a single specific credit note.
List Quotations
Lists both open and finalized sales quotes available in the system.
Get Quotation
Provides extensive details, including amounts and line items, for a specific quote.
List Order Confirmations
Retrieves a structured register of all historical order confirmations.
List Delivery Notes
Gets the collection of issued delivery notes, which document shipment details.
List Vouchers
Provides a comprehensive overview of all recorded documents, including expenses and revenues.
List Payment Conditions
Retrieves the standard data for global payment terms like due dates and discounts.
List Posting Categories
Displays defined accounting categories or account structures used for recording...
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The headache of keeping accounting records current.
Today, getting a full picture of your finances means jumping between multiple screens. You pull up the contact list to verify an address, then switch to invoices to check payment history, and finally open vouchers just to confirm if that expense was properly categorized. It's a cycle of copy-pasting data points across spreadsheets and different tabs.
With this MCP connected via Vinkius, you simply ask your agent for the full picture. You can prompt it to 'Show me the current outstanding payments,' and it compiles the necessary details from multiple sources—contacts, invoices, and vouchers—and hands you one clear answer.
Get conversational control with the Lexware Office MCP.
The ability to query global payment conditions or list posting categories used to require deep knowledge of accounting standards and navigating complex drop-down menus. Now, you just ask the agent about them; it retrieves the precise definitions for you.
This means your AI client doesn't just read data; it understands what that data *means* in a business context. You get actionable financial intelligence, instantly.
What Lexware Office MCP does for your AI
This MCP lets your AI agent handle the entire lifecycle of your business finances within Lexware Office. Forget manually navigating tabs or exporting messy CSV files just to check a status. You tell your agent what you need—like 'Show me all outstanding invoices for TechGmbH'—and it pulls that specific, structured data instantly.
It handles routine bookkeeping tasks like listing and creating customer records or auditing historical vouchers. Need to reconcile a payment? Simply ask the agent to pull up the detailed line items for any invoice or credit note. Because this MCP is hosted on Vinkius, you connect your preferred AI client once and gain access to this entire catalog of financial tools.
It puts complex accounting processes right into natural conversation, giving small business owners and accountants immediate visibility over their books.
019d75c6-f5b3-71c4-9b20-a24a3f702455 How to set up Lexware Office MCP
The bottom line is you talk to your agent, the agent talks to this MCP, and you get clean, structured financial data back.
Subscribe to the Lexware Office MCP on Vinkius.
Enter your unique Lexware Office API key into your AI client's settings.
Start talking to your agent and ask it to perform specific accounting tasks.
Who uses Lexware Office MCP
Small business owners in Germany, freelancers, and operational accountants who are tired of manually switching between the accounting software and their workflow tool. This is for anyone whose job requires constant cross-referencing of invoices, contacts, and vouchers.
Tracking client invoices and expenses without ever leaving their design or development environment.
Monitoring outstanding payments and ensuring customer master data is accurate through natural conversation, keeping a tight grip on cash flow.
Auditing voucher categories and tax mappings to ensure the entire accounting system adheres to compliance standards like GoBD.
Benefits of connecting Lexware Office MCP
Full visibility into cash flow. Instead of clicking through tabs, you ask the agent to list outstanding invoices or check the payment status on a specific invoice using get_invoice, getting immediate answers.
Master customer and vendor data easily. You can use list_contacts or create_contact to manage master data without ever opening the core accounting application.
Simplify complex auditing. The list_vouchers tool gives you one unified view of all transactions—expenses, revenues, and credit notes—making compliance checks fast.
Track sales from quote to cash. You can pull up quotations (list_quotations) and track them through order confirmations (list_order_confirmations), monitoring the entire revenue pipeline in conversation.
Maintain tax accuracy. Querying global payment conditions or posting categories ensures that every new financial record is correctly mapped for German compliance.
Lexware Office MCP use cases
Checking invoice status and details
The owner needs to know if a large client paid their bill. They ask the agent, 'What's the status of invoice RE-1002?' The agent uses get_invoice and replies instantly with the amount due, payment history, and whether it's currently open or overdue.
Onboarding a new vendor
A freelancer needs to add a new supplier. They tell their agent, 'Please create a contact for Acme GmbH.' The agent uses create_contact, ensuring the new record is properly structured and assigned roles immediately.
Auditing tax compliance
An accountant needs to verify all recorded expenses. They ask the agent to pull up vouchers from the last quarter. The agent uses list_vouchers, giving a chronological stream of every expense and revenue record for review.
Handling returns or corrections
The company issued incorrect goods and needs to process a credit note. Instead of finding the voucher manually, they ask the agent to list_credit_notes, allowing them to quickly find the exact amount needed for correction.
Lexware Office MCP tradeoffs
What to watch out for, and the recommended way to handle each one.
Manual data gathering
Trying to get a full picture of an account by exporting contacts from one screen, invoices from another, and vouchers from a third. This takes hours of clicking through different tabs.
Use your agent to run targeted queries. For instance, combine list_invoices with list_contacts in one prompt to pull all required data points conversationally.
Ignoring structured data
Treating financial records like general documents and relying on keyword searches across unstructured text files.
Use the specialized tools. If you need a specific amount, use get_invoice or get_credit_note. These tools access the precise financial fields, not just the text.
Copy-pasting data between systems
Manually entering contact details into an accounting system after getting them from a spreadsheet, risking format errors.
Use create_contact. This tool handles standardized formatting and assigns roles automatically, keeping your master data clean.
When to use Lexware Office MCP
Use this MCP if your primary pain point is managing structured, transactional financial records for accounting or invoicing in Germany. You need to connect the 'what' (the specific document details) with the 'why' (the compliance and workflow context). For example, use get_invoice when you need precise payment status; don't try to use it if you just want a general summary of sales activity—for that, list_quotations is better. Don't use this MCP if your goal is general knowledge retrieval or summarizing unstructured PDFs. This tool is designed for direct data interaction and transaction auditing (like using list_vouchers). If you only need to view documents without any follow-up action, a read-only document index might suffice; but since you need the AI agent to act on the data—creating contacts or checking payment rules—this MCP is what you need.
Frequently asked questions about Lexware Office MCP
How do I list invoices using the Lexware Office MCP? +
You use list_invoices to retrieve a chronologically sorted list of all billed invoices in your account. This gives you an overview of what has been sent out.
What is the difference between listing quotes and getting a quotation using Lexware Office MCP? +
list_quotations provides a general roster of open and closed estimates. get_quotation retrieves all specific details, including line items and amounts, for one particular quote.
Can I use the Lexware Office MCP to check payment rules? +
Yes, you can query global payment conditions using list_payment_conditions. This helps confirm your standard due dates and discount terms.
What if I need to add a new customer? Is it possible with the Lexware Office MCP? +
You can create a new record using create_contact. The tool handles assigning proper roles, making sure your master data is structured correctly.
Does list_vouchers cover all financial documents? +
Yes, it provides a unified stream view covering every type of recorded document, including general expenses, revenues, and credit notes, for a full audit trail.