generate_xrechnung
Generate a German XRechnung 3.0 e-invoice (UBL 2.1, EN 16931) from plain JSON. Totals, VAT and rounding are computed server-side per the official rules. Mandatory: invoiceNumber, issueDate, buyerReference (Leitweg-ID), seller (+sellerContact with name/phone/email), buyer, paymentIban, lines (name, quantity, unitPrice, vatRate). 30 credits, requires an API key.
buyer必填lines必填seller必填dueDateissueDate必填paymentIban必填invoiceNumber必填sellerContact必填buyerReference必填paymentTermsNote