Can I create a new customer record through my agent?

Yes. Use the `create_contact` tool by providing the company name, contact person, and email. Your agent will format the data according to Lexware Office standards and assign the correct role ('customer' or 'vendor') instantly.

How do I check the payment status of an invoice?

The `get_invoice` tool retrieves the complete document structure, including the current status (e.g., 'paid', 'open', or 'overdue'). Your agent can summarize these details for you directly in the conversation.

Can my agent list all accounting categories available in my account?

Absolutely. Use the `list_posting_categories` tool to retrieve the defined chart of accounts. This is essential for understanding how revenues and expenses are mapped to your financial reports and DATEV exports.

Lexware Office (Accounting & Invoicing) MCP Connector for Claude

A+

Manage bookkeeping via Lexware Office (lexoffice) — create contacts, track invoices, and audit accounting vouchers in Germany.

14 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

Connect your Lexware Office (lexoffice) account to any AI agent and take full control of your cloud-based accounting and invoicing through natural conversation.

What you can do

Contact Management — List and structure all business contacts (customers, vendors) and create new records with precise role assignments directly from your agent
Invoice Lifecycle — Browse chronologically sorted invoices and retrieve detailed line items, VAT breakdowns, and payment statuses securely
Accounting Vouchers — Access a unified stream of all recorded vouchers, including expenses, revenue, and credit notes for easy bookkeeping audits
Sales Pipeline — List and inspect quotations, order confirmations, and delivery notes to monitor your sales and logistics workflow
Financial Configuration — Query global payment conditions and posting categories to ensure accurate account mapping and tax compliance
Credit Notes Audit — Retrieve exact amount details and positions for credit notes to manage cancellations and financial corrections efficiently

How it works

Subscribe to this server
Enter your Lexware Office API Key
Start managing your bookkeeping from Claude, Cursor, or any MCP-compatible client

Who is this for?

Small Business Owners in Germany — monitor outstanding payments and manage customer master data through natural conversation
Freelancers — track invoices and expenses without leaving your development or design environment
Accountants & Ops — audit voucher categories and tax mappings to ensure GoBD compliance across the entire accounting system

bookkeepinginvoicingtax-reportingexpense-trackingfinancial-auditingvat-management

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_mYFhAugLgluYKnx9hp8aILLuBsDQbKqL8Ue9DY7b/mcp

② Claude Code (terminal)

claude mcp add --transport http lexware-office-accounting-invoicing https://edge.vinkius.com/vk_preview_mYFhAugLgluYKnx9hp8aILLuBsDQbKqL8Ue9DY7b/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "lexware-office-accounting-invoicing": {
      "url": "https://edge.vinkius.com/vk_preview_mYFhAugLgluYKnx9hp8aILLuBsDQbKqL8Ue9DY7b/mcp"
    }
  }
}

Get full access on Vinkius

The preview token above works for testing. Powered by Vinkius.