A Dutch canal at blue hour, warm window lights reflected on still water

Create a free account to call the API — nothing runs from this page.

One call

What you post, and what comes out

Your request

What comes back

    We return the XML — that is the invoice, and that is what has legal standing. The preview is the same file read by a person. /invoicing/validate also accepts UBL 2.1 and PDF/A-3 as input, but /invoicing/generate always produces XRechnung CII — one syntax out, regardless of what you send in.

    That is the whole integration. One endpoint, one call.

    The numbers behind it

    Easy to get wrong

    The parts that decide whether it is accepted

    In their words

    What integrators say after the first document

    Placeholder quotes today. The endpoint is not a placeholder.

    Pricing

    FAQ

    Questions

    If the answer you needed is not above, the question form below is shown but not yet wired up — the same as the form on the first screen.

    Still not sure

    Ask us before you sign up

    A question about a format, a national rule, or whether your case fits at all. No sales call — a written, technical answer, once this channel opens with the public launch.