Lexware Api [updated] May 2026

| Event | Trigger | |-------|---------| | invoice.created | A new invoice is generated | | invoice.paid | Payment is fully matched | | contact.created | New customer/vendor added | | credit.note.created | Refund document issued |

Here is comprehensive content about the , structured for developers, business decision-makers, or technical documentation. Lexware API: Interface for Accounting, Payroll & ERP 1. What is the Lexware API? The Lexware API (formerly Lexoffice API) is a RESTful web interface that allows developers to connect third-party applications, custom software, or e-commerce platforms directly with Lexware’s business software suite (e.g., Lexware office, Lexware financial office, Lexware buchhaltung). lexware api

It enables automated data exchange between Lexware and external systems – from CRM and online shops to warehouse management or payment gateways – without manual data entry. The API is primarily for Lexoffice (cloud-based accounting) and Lexware financial office pro / premium (hybrid/desktop with cloud API). Older desktop-only versions do not offer an API. 2. Core Capabilities (What you can do) | Category | Features | |----------|----------| | Contacts | Create, read, update, delete customers, vendors, and addresses | | Invoices | Create, send, download PDFs, mark as paid, manage invoice statuses | | Estimates | Generate quotes and convert them into invoices | | Products / Services | Maintain article catalogs, prices, and tax rates | | Transactions | Import bank statements, reconcile payments, assign to invoices | | Credit notes | Create refunds or corrections linked to invoices | | Vouchers / Receipts | Upload expense receipts, travel expense reports | | Tax / VAT | Read tax rates, generate VAT reports (Umsatzsteuervoranmeldung) | | Event | Trigger | |-------|---------| | invoice