
aiDoks.eu
InvoiceIn
Mustang Project
E-Rechnungs-Studio.de
Invoice-Converter
GetInvoice
GetMyInvoices
REST API for German e-invoices: generate XRechnung (UBL/CII) and ZUGFeRD from JSON, and validate XML and PDF invoices against the official KoSIT rule set, with a plain-language explanation for every business-rule finding. Validation is free.

E-Rechnungs-Studio.de
Mustang Project
aiDoks.eu
OctoPDF
CIB pdf brewer
Fawtar.app
PaveNow
Simple PDF files become machine-readable, XML invoices become human-readable.

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| Website | normapi.com | e-invoice.space |
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NormAPI generates XRechnung (UBL and CII) and ZUGFeRD invoices from JSON and validates XML and PDF invoices against the official KoSIT rule set, as a REST API and as a free browser validator without sign-up. Generated invoices are validated before they are returned, every response names the...
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