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Your free API access

Sign in with GitHub, name your key and press create. No card, and nothing to fill in beyond the name.

What free access gives you

  • 100 validations a month, plus 20 generated invoices in an allowance of their own. Both are counted per account and reset monthly on your signup date.
  • Every format the validator reads: Factur-X, ZUGFeRD, XRechnung, UBL 2.1 and UN/CEFACT CII.
  • Two endpoints: POST /v1/validate against the full official rule set, and POST /v1/generate, which builds a Factur-X invoice from JSON and validates it before returning it. Extraction is still in development.
  • No card and no expiry date. Up to 10 named keys per account, each one revocable on its own.

Sign in with GitHub

Sign in with GitHub

We ask GitHub for your user id and the primary email address on your account, nothing else: the id is what ties your keys to one account, the address is how we reach you if you ask for more volume. The token GitHub returns is used once and discarded.

How we handle that data