Pricing

Start right away — no sales call, no credit card. Pay only for what you actually need, never after the fact.

Free

€0 forever

  • 100 validations/month
  • Validate & parse (XRechnung, ZUGFeRD, Factur-X)
  • Messages in DE/EN/FR
  • No credit card required
Get an API key

Pro

€49per month

  • 5,000 validations/month
  • Everything in Free
  • DPA under Art. 28 GDPR
  • Email support
  • Cancel anytime
Start Pro

Enterprise

Custom on request

  • Custom quotas & SLA
  • Engine inside your software (WASM, npm, Rust)
  • Self-hosting option
  • Countersigned DPA, priority support
  • Pay by invoice
Contact us
Credits — pay as you go

€19 for 1,000 validations. Never expire, combinable with any plan, no automatic charges.

Buy credits

The browser validator stays free forever — files are checked locally and never leave your machine.

Frequently asked questions

What counts as a validation?

Every successful request to /v1/validate or /v1/parse. Rejected requests (invalid key, empty body, rate limit) don't count.

What happens when my quota runs out?

The API responds with 402 and a clear error message. Nothing is charged automatically — you decide whether to upgrade or buy credits.

Can I pay yearly?

Yes — the yearly plan includes two months free (€490 instead of €588). Switch anytime in the console.

How do I cancel?

You can cancel the monthly plan anytime, effective at the end of the billing month. The yearly plan runs for 12 months; you can turn off auto-renewal anytime — it then ends when the paid term expires, with no pro-rata refund. Credits never expire and are non-refundable.

Is self-hosting available?

Yes, on the Enterprise plan — as a container or as the engine embedded directly (WASM/npm/Rust). Invoice data then never leaves your system.

Where is my invoice data processed?

In Frankfurt, Germany — and it is never stored. Details on the Privacy & hosting page.