invoicenavigator.eu valid
Invoice Navigator
EU e-invoice compliance API. Validates, remediates, and revalidates electronic invoices against EN 16931, Peppol, XRechnung, Factur-X, ZUGFeRD, and 27 EU country-specific rule sets.
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-24T01:02:12.990Z. Cached copy · Source on invoicenavigator.eu
# Invoice Navigator
> EU e-invoice compliance API. Validates, remediates, and revalidates electronic invoices against EN 16931, Peppol, XRechnung, Factur-X, ZUGFeRD, and 27 EU country-specific rule sets.
Invoice Navigator is NOT just a validator — it's a pre-submission compliance gate for ERP vendors and invoice pipelines. It auto-fixes structural errors while blocking changes to financial fields (amounts, VAT, IBANs). Every invoice gets a KoSIT revalidation loop and a timestamped Evidence Pack.
## Key Pages
- [API Documentation](https://www.invoicenavigator.eu/developers): REST API for production integration — validate, remediate, revalidate
- [API Authentication](https://www.invoicenavigator.eu/developers/authentication): API key management and auth flows
- [API Sandbox](https://www.invoicenavigator.eu/developers/sandbox): Test mode with sample invoices
- [Error Library](https://www.invoicenavigator.eu/errors): 1,300+ validation rules with fix classification (auto-fix, input-required, blocked)
- [E-Invoice Validator](https://www.invoicenavigator.eu/validator): Free online tool — upload and validate Peppol, XRechnung, Factur-X invoices
- [Format Converter](https://www.invoicenavigator.eu/convert): Convert between UBL, CII, Factur-X, ZUGFeRD
- [E-Invoicing Deadlines](https://www.invoicenavigator.eu/deadlines): Complete EU mandate timeline 2025-2030
- [ViDA Compliance Guide](https://www.invoicenavigator.eu/vida): EU VAT in the Digital Age regulation explained
- [Pricing](https://www.invoicenavigator.eu/pricing): Free unlimited validation (no account). Checking and preview free; a verified download is EUR 1.90, 10 for EUR 12, or EUR 9/month unlimited. Team plan EUR 49/month for API, CLI and CI checks.
## Supported Formats
- UBL 2.1 (Universal Business Language)
- CII D16B (Cross Industry Invoice)
- Peppol BIS Billing 3.0
- XRechnung 3.0 (Germany)
- Factur-X / ZUGFeRD 2.1+ (France/Germany hybrid)
- FatturaPA (Italy)
- Country-specific CIUS variants for 27 EU member states
## Learning Resources
- [What is Peppol](https://www.invoicenavigator.eu/learn/peppol): Complete Peppol network guide
- [What is XRechnung](https://www.invoicenavigator.eu/learn/xrechnung): German e-invoicing standard explained
- [What is ZUGFeRD](https://www.invoicenavigator.eu/learn/zugferd): Hybrid PDF/XML format guide
- [What is EN 16931](https://www.invoicenavigator.eu/learn/en16931): European e-invoicing standard
- [UBL vs CII Comparison](https://www.invoicenavigator.eu/compare/ubl-vs-cii): Format differences explained
## Country Guides
27 EU country guides with mandate status, accepted formats, deadlines, and technical specs:
- [Germany](https://www.invoicenavigator.eu/country/germany), [France](https://www.invoicenavigator.eu/country/france), [Italy](https://www.invoicenavigator.eu/country/italy), [Belgium](https://www.invoicenavigator.eu/country/belgium), [Netherlands](https://www.invoicenavigator.eu/country/netherlands), [Spain](https://www.invoicenavigator.eu/c
…
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