Validate and generate German e-invoices (XRechnung, ZUGFeRD) against the official KoSIT rules.
Free
One server, in payments & billing. Validate and generate German e-invoices (XRechnung, ZUGFeRD) against the official KoSIT rules.
Payments & Billing
Validate and generate German e-invoices (XRechnung, ZUGFeRD) against the official KoSIT rules.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.