Rule sets in production
| Standard | Engine / version |
|---|---|
| XRechnung, ZUGFeRD 2.x, Factur-X, generic EN 16931 | KoSIT Validator 1.6.3 with XRechnung 3.0.2 configuration (2026-01-31) |
| Peppol BIS Billing 3.0 | OpenPeppol rule sets release 3.0.20 (November 2025), CEN EN 16931 + PEPPOL-EN16931 schematron, Saxon-JS |
| KSeF FA(3) | Ministry of Finance XSD 2025-06-25 plus semantic rules (@ksefuj/validator 0.4.0) |
| ZUGFeRD 1.0 | view only (legacy, no rule set) |
Live health endpoint: GET /health returns {"ok":true,"db":true} when the service and its database are up.
Changelog
- 2026-10-13 Launch: viewer, validator, JSON and PDF output for all formats above; API with free and paid plans; developer documentation in five languages; customer portal; contact and support conversations.