Pricing

The validator is free and stays free. You only pay for what generates invoices — at prices fixed before launch instead of surprising you later.

As of 14 August 2026 · launch pricing · all prices net

Free forever

Validator

€0

  • Validate XRechnung (UBL and CII) and ZUGFeRD PDFs
  • Findings with rule code, explained in plain language — against the current KoSIT ruleset (v2026-01-31)
  • No sign-up, fair-use limit
  • Invoice content is never stored
Open the validator

At launch

Starter

€49per month

  • 500 generated invoices per month, then €0.08 per invoice
  • XRechnung (UBL, CII) and ZUGFeRD PDF from JSON
  • Every invoice is validated before it leaves the API
  • Your own API key with a higher rate limit
  • Validation API for your CI included
  • Email support
Become a design partner

At launch

Business

€149per month

  • 2,500 generated invoices per month, then €0.05 per invoice
  • Everything in Starter
  • Multiple API keys (e.g. per environment)
  • Data processing agreement (DPA) included
  • Priority support
Become a design partner

Custom

Higher volume, an SLA, special requirements — such as the receiving side (validating and reading incoming e-invoices). Let's talk.
Talk to us

Frequently asked questions

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 for the beta?

No. There is no billing during the beta — keys are issued by email, free. Paying starts at launch, announced in advance.

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 during the beta.

Can prices still change?

Until launch: yes — this page is a statement of intent, not a contract. What design partners have been promised — free beta and 50% off the first year — holds either way.