Structured JSON
Send business data and let Klik Račun build and validate a compliant UBL document.
Klik Račun · Public API v1
Reliable eInvoice integration.
Create, validate, send, correct, and reverse eInvoices with explicit safeguards, complete traceability, and first-class raw UBL XML support.
Integration flow
From credentials to a verifiable outcome
- 1Obtain token
- 2Create draft
- 3Validate
- 4Issue
- 5Track outcome
Clear contract, safe boundaries
Choose your integration style
Raw UBL XML
Send a complete UBL 2.1/HR-CIUS document; the system validates and preserves it.
Guarded corrections
Plan preview and one-time confirmation preserve the chain of issued documents.
Payment evidence
Partial and full settlement is derived from the amounts that were actually recorded.
Especially important
Your XML stays yours.
Klik Račun issues the validated standalone UBL you submitted. Only deterministic BG-3 references required by the guarded advance workflow may be added.
Read the XML preservation rules