Pricing
The validator is free and stays free. You only pay for what generates invoices — and only above the free allowance.
As of 21 September 2026 · all prices net
Free forever
Validator
€0
- Validate XRechnung (UBL and CII) and ZUGFeRD PDFs
- Every error with its rule code, explained in plain language — against the current KoSIT ruleset (v2026-08-31)
- No sign-up, fair-use limit
- With an account: 25 generated invoices per month on top
- Invoice content is never stored
Available now
Starter
€49per month
- 500 generated invoices per month, then the next plan
- XRechnung (UBL, CII) and ZUGFeRD PDF from JSON
- Every invoice is validated before it leaves the API
- Validation API for your own automated tests included
- Email support
Available now
Business
€149per month
- 2,500 generated invoices per month
- Everything in Starter
- Data processing agreement (DPA) included
- Priority support
| Plan | Per month | Generated invoices included |
|---|---|---|
| Validator | €0 | 25 with an account · validation never counts |
| Starter | €49 | 500 · validation never counts |
| Business | €149 | 2,500 · validation never counts |
Custom
Frequently asked questions
What does an XRechnung API cost?
At NormAPI: nothing to validate, and to generate €49 a month for 500 invoices or €149 for 2,500. An account includes 25 generated invoices a month free, and validation never counts against it. All prices net, no setup fee, no minimum term.
What counts as a generated invoice?
Every successful POST /v1/invoices — whether UBL, CII or ZUGFeRD PDF. Rejected requests (say, an invoice that fails validation) don't count. Validation requests never count.
What about ruleset updates?
Included in every plan — that is the point of NormAPI. KoSIT updates the ruleset roughly every six months; we track the updates and your integration stays unchanged. The version currently in force is in every API response (X-Normapi-Ruleset) and in the docs.
Do I need a credit card?
No. Create an account, make a key, start — 25 generated invoices a month are free and validation never counts. Paying starts above the allowance.
Where is data processed?
In the EU (Amsterdam). Invoice content is processed but never stored — details in the privacy policy. A DPA is included from Business, and available on request before that.
Can prices still change?
They can change, but never retroactively: what applies when you subscribe applies for your term. What design partners have been promised — three months free and 50% off the first year — holds either way.