E
en16931

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finbc-public / erp-rechnungsapi

Open-source Mini ERP demo for German & EU e-invoicing generate and validate ZUGFeRD, XRechnung, Factur-X and EN16931 invoices through the rechnungsapi.de API. Node.js + Express + React, no database, no build step.

ZUGFeRD xrechnung german factur-x en16931 e-invoice e-rechnung electronic-i... peppol invoice-vali... invoice-gene... rechnungsapi API

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Updated Jun 19, 2026

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Updated Jun 19, 2026